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Arbor Hole Size
Manufacturer Model Number
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DFARS Specialty Metals
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Tip Style
Grinding Bits for Metals
 |  |  |  |  |
Style 1 | Style 2 | Style 3 | Style 4 | Style 19 |
 |  |  |  |  |
Style 20 | Style 22 | Style 24 | Style 25 | Style 27 |
Cylinder
| |
Style 1 | Style 2 |
Head | Abrasive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Pkg. Qty. | Pkg. | |||
For Steel | |||||||||||||
1/4" Diameter Shank | |||||||||||||
| 1 | 1" | 2 1/2" | 12,370 | W223 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Blue | 1 | 4522A355 | 00000 | ||
For Steel, Stainless Steel, and Iron | |||||||||||||
1/8" Diameter Shank | |||||||||||||
| 2 | 1" | 1/8" | 38,200 | W215 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A142 | 0000 | ||
| 2 | 1" | 1/4" | 30,520 | W216 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A143 | 0000 | ||
1/4" Diameter Shank | |||||||||||||
| 1 | 1" | 3/4" | 35,100 | W219 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A237 | 00000 | ||
| 1 | 1" | 1" | 25,500 | W220 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A238 | 00000 | ||
| 1 | 1" | 1" | 34,500 | A38 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A254 | 00000 | ||
| 1 | 1" | 1 1/2" | 19,120 | W221 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A239 | 00000 | ||
| 1 | 1" | 2" | 15,900 | W222 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A241 | 00000 | ||
| 2 | 1" | 1/4" | 38,200 | W216 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A234 | 0000 | ||
| 2 | 1" | 3/8" | 38,200 | W217 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A235 | 0000 | ||
| 2 | 1" | 1/2" | 38,200 | W218 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A236 | 0000 | ||
Barrel
| |
Style 3 | Style 4 |
Head | Abrasive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Pkg. Qty. | Pkg. | |||
For Steel, Stainless Steel, and Iron | |||||||||||||
1/4" Diameter Shank | |||||||||||||
| 3 | 1" | 1" | 34,500 | A21 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A269 | 000000 | ||
| 4 | 1" | 2 3/4" | 16,100 | A3 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A281 | 00000 | ||
Flat-Top Cone
| | |
Style 19 | Style 20 | Style 22 |
Head | Abrasive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Pkg. Qty. | Pkg. | |||
For Steel, Stainless Steel, and Iron | |||||||||||||
1/4" Diameter Shank | |||||||||||||
| 19 | 1" | 2 1/2" | 16,100 | A1SS | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A257 | 000000 | ||
| 20 | 1" | 3/8" | 38,200 | A35 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A271 | 00000 | ||
| 22 | 1" | 1 1/4" | 38,200 | A2 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A273 | 00000 | ||
Inverted Cone
| |
Style 24 | Style 25 |
Head | Abrasive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Pkg. Qty. | Pkg. | |||
For Steel | |||||||||||||
1/4" Diameter Shank | |||||||||||||
| 24 | 1" | 1/2" | 38,200 | A33 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Blue | 1 | 4522A322 | 00000 | ||
For Steel, Stainless Steel, and Iron | |||||||||||||
1/4" Diameter Shank | |||||||||||||
| 24 | 1" | 1" | 25,500 | A41SS | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A266 | 00000 | ||
| 25 | 1" | 5/8" | 38,200 | A32 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A262 | 00000 | ||
Ball
|
Style 27 |
Head | Abrasive | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Pkg. Qty. | Pkg. | |||
For Steel, Stainless Steel, and Iron | |||||||||||||
1/4" Diameter Shank | |||||||||||||
| 27 | 1" | 1" | 35,620 | A25 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 36 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A252 | 000000 | ||
Dremel Rotary Tool Grinding Bits
 |
Style 4 |
Pair with Dremel rotary tools to sharpen, debur, and grind metal surfaces.
Style | Shape | Head Dia. | Shaft Dia. | For Mfr. Model No. | Pkg. Qty. | Pkg. | ||
|---|---|---|---|---|---|---|---|---|
| 4 | Disc | 1" | 1/8" | 100-N/7, 200, 275, 285, 300, 3000-1/24, 395, 3965-02, 398, 400, 4000-2/30, 4300, 759, 770, 7700, 780, 7800-02, 800, 8050-N/18, 8100-N/21, 8200, 8220-1/28 | 5 | 4344A3 | 000000 |
Rubber-Cushioned Abrasive Grinding Bits for Metals
 |  |
Style 1 | Style 11 |
The abrasive grains in these bits are blended with rubber, which cushions during grinding to produce a smoother surface texture than other bits with similar grits. Bits are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Cylinder
|
Style 1 |
For Steel—Bits for steel are aluminum oxide, which is the most common abrasive used in grinding metal.
For Aluminum, For Brass, and For Bronze—Bits for aluminum, brass, and bronze are silicon carbide, which cuts through soft metals without generating much heat or causing material buildup.
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Each | |||
For Steel | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 1 | 1" | 1" | 25,500 | W220 | Aluminum Oxide | Rubber | 1 1/2" | 46 (Rough) Brown, 70 (Smooth) Black, 120 (Smooth) Green, 180 (Smooth) Red | 4919A472 | 000000 | ||
| 1 | 1" | 1" | 34,500 | A38 | Aluminum Oxide | Rubber | 1 1/2" | 46 (Rough) Silver, 80 (Smooth) Silver, 120 (Smooth) Silver, 180 (Smooth) Silver | 4919A601 | 00000 | ||
| 1 | 1" | 2" | 15,900 | W222 | Aluminum Oxide | Rubber | 1 1/2" | 46 (Rough) Silver, 80 (Smooth) Silver, 120 (Smooth) Silver, 180 (Smooth) Silver | 4919A647 | 00000 | ||
For Aluminum, Brass, and Bronze | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 1 | 1" | 1" | 25,500 | W220 | Silicon Carbide | Rubber | 1 1/2" | 46 (Rough) Brown, 90 (Smooth) Black, 120 (Smooth) Green, 240 (Extra Smooth) Red | 4919A856 | 00000 | ||
| 1 | 1" | 1" | 34,500 | A38 | Silicon Carbide | Rubber | 1 1/2" | 46 (Rough) Silver, 80 (Smooth) Silver, 120 (Smooth) Silver, 220 (Extra Smooth) Silver | 4919A701 | 00000 | ||
| 1 | 1" | 2" | 15,900 | W222 | Silicon Carbide | Rubber | 1 1/2" | 46 (Rough) Silver, 80 (Smooth) Silver, 120 (Smooth) Silver, 220 (Extra Smooth) Silver | 4919A796 | 00000 | ||
Cone
|
Style 11 |
For Steel—Bits for steel are aluminum oxide, which is the most common abrasive used in grinding metal.
For Aluminum, For Brass, and For Bronze—Bits for aluminum, brass, and bronze are silicon carbide, which cuts through soft metals without generating much heat or causing material buildup.
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Choose a Grit (Surface Texture) | Each | |||
For Steel | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 11 | 1" | 2 3/4" | 16,100 | A3 | Aluminum Oxide | Rubber | 1 1/2" | 46 (Rough) Brown, 70 (Smooth) Black, 120 (Smooth) Green, 180 (Smooth) Red | 4919A351 | 000000 | ||
For Aluminum, Brass, and Bronze | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 11 | 1" | 2 3/4" | 16,100 | A3 | Silicon Carbide | Rubber | 1 1/2" | 46 (Rough) Brown, 90 (Smooth) Black, 120 (Smooth) Green, 240 (Extra Smooth) Red | 4919A946 | 00000 | ||
High-Performance Grinding Bits for Metals
 |  |  |  |
Style 5 | Style 10 | Style 11 | Style 12 |
Made of aluminum oxide ceramic, these bits prevent material and heat buildup better than bits made of boron nitride and aluminum oxide when used on steel, stainless steel, iron, and titanium. They also last longer than boron nitride bits, so they’re the best choice for high-volume applications. Also known as mounted points and die grinder bits.
Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Cylinder
|
Style 10 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Iron, Stainless Steel, Steel, and Titanium | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 10 | 1" | 1/2" | 37,890 | W218 | Ceramic Alumina | Vitrified Clay | 1 1/2" | 36 (Rough) Red | 4775N27 | 000000 | ||
Barrel
|
Style 11 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Iron, Stainless Steel, Steel, and Titanium | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 11 | 1" | 1" | 35,510 | A21 | Ceramic Alumina | Vitrified Clay | 1 1/2" | 80 (Smooth) Green | 4775N22 | 00000 | ||
Disc
|
Style 5 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Iron, Stainless Steel, Steel, and Titanium | ||||||||||||
1/8" Diameter Shank | ||||||||||||
| 5 | 1" | 1/8" | 38,200 | W215 | Ceramic Alumina | Vitrified Clay | 1 1/2" | 80 (Smooth) Green | 4775N21 | 00000 | ||
Cone
|
Style 12 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Iron, Stainless Steel, Steel, and Titanium | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 12 | 1" | 2 3/4" | 15,530 | A3 | Ceramic Alumina | Vitrified Clay | 1 1/2" | 36 (Rough) Red | 4775N26 | 000000 | ||
Grinding Bits for Stainless Steel
 |  |  |
Style 1 | Style 4 | Style 8 |
Bits are specially formulated to stay cool during grinding, so they won’t mar or discolor stainless steel. They are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Cylinder
|
Style 1 |
Zirconia Alumina Abrasive—Zirconia alumina bits grind faster and last longer than aluminum oxide bits.
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Stainless Steel | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 1 | 1" | 1" | 25,500 | W220 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Pink | 44005A39 | 00000 | ||
| 1 | 1" | 1" | 25,500 | W220 | Zirconia Alumina | Synthetic Resin | 1 1/2" | 30 (Rough) Gray | 44005A22 | 0000 | ||
| 1 | 1" | 1" | 34,500 | A38 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Pink | 44005A35 | 0000 | ||
| 1 | 1" | 1 1/2" | 19,120 | W221 | Zirconia Alumina | Synthetic Resin | 1 1/2" | 30 (Rough) Gray | 44005A19 | 0000 | ||
| 1 | 1" | 2" | 15,900 | W222 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Pink | 44005A41 | 0000 | ||
| 1 | 1" | 2" | 15,900 | W222 | Zirconia Alumina | Synthetic Resin | 1 1/2" | 30 (Rough) Gray | 44005A21 | 0000 | ||
Barrel
|
Style 8 |
Zirconia Alumina Abrasive—Zirconia alumina bits grind faster and last longer than aluminum oxide bits.
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Stainless Steel | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 8 | 1" | 2 3/4" | 16,100 | A3 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Pink | 44005A28 | 00000 | ||
| 8 | 1" | 2 3/4" | 16,100 | A3 | Zirconia Alumina | Synthetic Resin | 1 1/2" | 30 (Rough) Gray | 44005A12 | 00000 | ||
Ball
|
Style 4 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Stainless Steel | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 4 | 1" | 1" | 35,620 | A25 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Pink | 44005A34 | 00000 | ||
Burs
Cylinder with Flat Tip
 |
 |
Double-Cut Tooth |
 |
Single-Cut Tooth |
Flat cylinder burs are for straight edges and flat surfaces.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
High-Speed Steel—The choice for general purpose deburring on steel, though not as strong as carbide.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Cylinder with Flat-Cutter Tip
 |
 |
Double-Cut Tooth |
 |
Single-Cut Tooth |
Flat cutter cylinder burs are for straight edges, flat surfaces, and flat-bottom holes and slots.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Cylinder with Round Tip
 |
 |
Double-Cut Tooth |
 |
Single-Cut Tooth |
Round cylinder burs are for curved surfaces and slots and round-bottom holes and slots.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Ball
 |
 |
Double-Cut Tooth |
 |
Single-Cut Tooth |
Ball burs are for curved surfaces, round slots, and round-bottom holes.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
High-Speed Steel—The choice for general purpose deburring on steel, though not as strong as carbide.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Head | Double-Cut Tooth (Medium Grit) | Single-Cut Tooth (Fine Grit) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | Bur Trade No. | For Use On | Each | Each | ||||
Carbide | |||||||||||
| 1/4" | 1" | 15/16" | 2 3/4" | SD-9 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4292A123 | 000000 | 43035A223 | 000000 | ||
High-Speed Steel | |||||||||||
| 1/4" | 1" | 1" | 2 3/4" | — | Steel | ——— | 0 | 4238A143 | 00000 | ||
Cone
 |
 |
Double-Cut Tooth |
 |
Single-Cut Tooth |
Cone burs are for beveled edges and countersunk holes.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Head | Double-Cut Tooth (Medium Grit) | Single-Cut Tooth (Fine Grit) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Tip Angle | Overall Lg. | Bur Trade No. | For Use On | Each | Each | ||||
Carbide | ||||||||||||
| 1/4" | 1" | 1/2" | 90° | 2 1/4" | SK-9 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4292A148 | 000000 | 43035A248 | 000000 | ||
| 1/4" | 1" | 15/16" | 60° | 2 3/4" | SJ-9 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4292A146 | 00000 | 43035A246 | 00000 | ||
Thin Disc with Flat Edge
 |  |
Single-Cut Tooth |
Flat-edge thin disc burs are for straight edges and flat surfaces.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Head | Single-Cut Tooth (Fine Grit) | |||||||
|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | For Use On | Each | |||
Carbide | ||||||||
| 1/4" | 1" | 3/16" | 2 3/16" | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4241A57 | 000000 | ||
Thin Disc with Rounded Edge
 |  |
Single-Cut Tooth |
Rounded-edge thin disc burs are for oblong slots and holes.
Carbide—Best for removing material from a variety of metals. These burs are harder, stronger, and more wear resistant than high-speed steel.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Head | Single-Cut Tooth (Fine Grit) | |||||||
|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | For Use On | Each | |||
Carbide | ||||||||
| 1/4" | 1" | 3/16" | 2 3/16" | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4241A67 | 000000 | ||
Hex-Shank Grinding Bits for Metals
 |  |  |
Style 1 | Style 2 | Hex Shank |
Use bits in any drill chuck that accepts a 1/4" hex shank.
Bits are aluminum oxide, which is the most common abrasive used in grinding metal. They are also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Cylinder
| |
Style 1 | Hex Shank |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Steel and Iron | ||||||||||||
1/4" Hex Shank | ||||||||||||
| 1 | 1" | 1/2" | 38,200 | W218 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Gray | 4087A19 | 00000 | ||
| 1 | 1" | 1" | 34,500 | A38 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Gray | 4087A17 | 0000 | ||
Barrel
| |
Style 2 | Hex Shank |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Steel and Iron | ||||||||||||
1/4" Hex Shank | ||||||||||||
| 2 | 1" | 1" | 34,500 | A21 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 60 (Rough) Gray | 4087A15 | 00000 | ||
Cotton-Laminate Grinding Bits for Metals
 |  |  |
Style 1 | Style 2 | Style 5 |
Made of cotton fiber layers embedded with aluminum-oxide grains, these bits grind and finish in one step. They’re ideal for light deburring, blending, and finishing metal. These grinding bits remove material more efficiently than rubber-cushioned bits. While grinding, they resist the buildup of aluminum, brass, bronze, and other nonferrous metal. They’re also known as mounted points and die grinder bits. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Cylinder
|
Style 1 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Steel, Stainless Steel, Aluminum, Brass, Copper, Iron, Nickel, and Titanium | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 1 | 1" | 1" | 25,500 | W220 | Aluminum Oxide/Cotton Laminate Blend | Rubber | 1 1/2" | 80 (Smooth) Blue-Gray | 4806N111 | 000000 | ||
Cone
|
Style 5 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Steel, Stainless Steel, Aluminum, Brass, Copper, Iron, Nickel, and Titanium | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 5 | 1" | 2 3/4" | 15,530 | A3 | Aluminum Oxide/Cotton Laminate Blend | Rubber | 1 1/2" | 80 (Smooth) Blue-Gray | 4806N391 | 000000 | ||
Ball
|
Style 2 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Steel, Stainless Steel, Aluminum, Brass, Copper, Iron, Nickel, and Titanium | ||||||||||||
1/4" Diameter Shank | ||||||||||||
| 2 | 1" | 1" | 35,510 | A25 | Aluminum Oxide/Cotton Laminate Blend | Rubber | 1 1/2" | 80 (Smooth) Blue-Gray | 4806N411 | 000000 | ||
Long-Life Rubber-Cushioned Abrasive Grinding Bits for Metals
 |
A diamond abrasive that's bonded to a rubber cushioning makes these bits last 10 to 20 times longer than rubber-cushioned bits without diamond. Because they’re cushioned during grinding, these bits produce a smoother surface texture than other bits with similar grits. Also known as mounted points and die grinder bits.
Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Head | Abrasive | 180 (Smooth) Green | 320 (Extra Smooth) Blue | 1000 (Extra Smooth) Yellow | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Lg. | Max. Rotation Speed, rpm | Shape | Material | Bond Material | Shank Lg. | Each | Each | Each | |||||
For Steel, Stainless Steel, Aluminum, Brass, Bronze, Copper, Iron, Nickel, and Titanium | ||||||||||||||
1/8" Diameter Shank | ||||||||||||||
| 1" | 5/64" | 15,000 | Cylinder | Diamond | Rubber | 1 1/2" | 4859N12 | 000000 | 4859N15 | 000000 | 4859N18 | 000000 | ||
| 1" | 3/32" | 15,000 | Cylinder | Diamond | Rubber | 1 1/2" | 4859N11 | 00000 | 4859N14 | 00000 | 4859N17 | 00000 | ||
Long-Life Burs
Cylinder with Round Tip
|  |
Double-Cut Tooth |
Round cylinder burs are for curved surfaces and slots and round-bottom holes and slots.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Head | Double-Cut Tooth (Medium Grit) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | Bur Trade No. | For Use On | Each | |||
Titanium Aluminum Nitride (TiAlN)-Coated Carbide | |||||||||
| 1/4" | 1" | 1" | 2 3/4" | SC-9 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4290A124 | 000000 | ||
Ball
|  |
Double-Cut Tooth |
Ball burs are for curved surfaces, round slots, and round-bottom holes.
Double-Cut Tooth—Double-cut tooth burs are for rapid metal removal with a coarser finish than single cut.
Head | Double-Cut Tooth (Medium Grit) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | Bur Trade No. | For Use On | Each | |||
Titanium Aluminum Nitride (TiAlN)-Coated Carbide | |||||||||
| 1/4" | 1" | 15/16" | 2 11/16" | SD-9 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4290A148 | 000000 | ||
Rubber-Cushioned Abrasive Grinding Bits without Shank for Metals
 |
Style 5 |
Bits attach to shanks so you can quickly switch head shapes without removing the shank. The abrasive grains are blended with rubber, which cushions during grinding to produce a smoother surface texture than other bits with similar grits.
Bits are silicon carbide, which cuts through soft metals without generating much heat or causing material buildup. Head diameter is measured at the widest point.
Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
Cylinder
|
Style 5 |
Bits | Wheel Arbors | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | Abrasive | ||||||||||||
Style | Dia. | Lg. | Arbor Hole Size | Max. Rotation Speed, rpm | Material | Bond Material | Choose a Grit (Surface Texture) | Each | Each | ||||
For Steel, Aluminum, Brass, and Bronze | |||||||||||||
| 5 | 1" | 1/4" | 1/8" | 20,000 | Aluminum Oxide/Silicon Carbide Blend | Rubber | 46 (Rough) Green, 120 (Smooth) Gray-Brown, 180 (Smooth) Red, 240 (Extra Smooth) Blue | 4826A61 | 00000 | 4770A15 | 00000 | ||
