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Shank Flexibility
Grinding Bits for Metals
 |  |
Style 18 | Style 28 |
Made of aluminum oxide, these bits are well suited for use on most metals and materials that are not heat sensitive.
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.
Flat-Top Cone
|
Style 18 |
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 | |||||||||||||
1/8" Diameter Shank | |||||||||||||
| 18 | 7/16" | 3/4" | 45,370 | B51 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A173 | 000000 | ||
Pear Shape
|
Style 28 |
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 | |||||||||||||
1/8" Diameter Shank | |||||||||||||
| 28 | 7/16" | 11/16" | 33,750 | B111 | Aluminum Oxide | Vitrified Clay | 1 1/2" | 46 (Rough) Blue-Gray, 60 (Rough) Orange, 120 (Smooth) Blue | 5 | 4522A158 | 000000 | ||
Dremel Rotary Tool Grinding Bits
 |
Style 7 |
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. | ||
|---|---|---|---|---|---|---|---|---|
| 7 | Pear | 7/16" | 1/8" | 100-N/7, 200, 275, 285, 300, 3000-1/24, 395, 3965-02, 398, 400, 4000-2/30, 4300, 750, 770, 7700, 780, 7800-02, 800, 8050-N/18, 8100-N/21, 8200, 8220-1/28 | 5 | 4344A21 | 000000 |
Grinding Bits for Stainless Steel
 |
Style 5 |
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.
Cone
|
Style 5 |
Head | Abrasive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Shape No. | Material | Bond Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Stainless Steel | ||||||||||||
1/8" Diameter Shank | ||||||||||||
| 5 | 7/16" | 3/4" | 45,370 | B51 | Aluminum Oxide | Vitrified Ceramic | 1 1/2" | 80 (Smooth) Pink | 44005A45 | 00000 | ||
Grinding Bits for Nonmetals
 |
Style 1 |
Almost as hard as diamond, these tungsten carbide bits cut through nonmetals without generating heat.
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 |
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Style | Dia. | Lg. | Max. Rotation Speed, rpm | Abrasive Material | Shank Lg. | Grit (Surface Texture) | Each | |||
For Composites, Fiberglass, Plaster, Plastic, Rubber, and Wood | ||||||||||
1/8" Diameter Shank | ||||||||||
| 1 | 7/16" | 21/32" | 20,000 | Tungsten Carbide | 7/8" | 36 (Rough) Bronze | 4931A35 | 000000 | ||
| 1 | 7/16" | 21/32" | 20,000 | Tungsten Carbide | 7/8" | 80 (Rough) Bronze | 4931A55 | 00000 | ||
Long-Life Burs
Cylinder with Flat Tip
 |  |
Double-Cut Tooth |
Flat cylinder burs are for straight edges and flat surfaces.
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" | 7/16" | 1" | 2 3/4" | SA-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4290A107 | 000000 | ||
Cylinder with Flat-Cutter Tip
 |  |
Double-Cut Tooth |
Flat cutter cylinder burs are for straight edges, flat surfaces, and flat-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" | 7/16" | 1" | 2 3/4" | SB-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4290A619 | 000000 | ||
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" | 7/16" | 1" | 2 3/4" | SC-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4290A121 | 000000 | ||
Tree with Round Tip
 |  |
Double-Cut Tooth |
Round tree burs are for curved surfaces and slots and curved holes with rounded bottoms.
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" | 7/16" | 1" | 2 3/4" | SF-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4290A127 | 000000 | ||
Ball
 |
 |
Double-Cut Tooth |
 |
Single-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.
Single-Cut Tooth—Single-cut tooth burs are for gradual metal removal with a fine finish.
Burs
Cylinder with Flat Tip
|
 |
Heavy Duty Double-Cut Tooth |
 |
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.
Heavy Duty Double-Cut Tooth—The best option to remove material quickly. These burs have the deepest flutes with the sharpest cutting angle and offset teeth on the tip. Although they break up chips the fastest, they leave the roughest finish.
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 | Heavy Duty Double-Cut Tooth (Coarse Grit) | Double-Cut Tooth (Medium Grit) | Single-Cut Tooth (Fine Grit) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | Bur Trade No. | For Use On | Each | Each | Each | |||||
Carbide | |||||||||||||
| 1/4" | 7/16" | 1" | 2 3/4" | SA-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4292A813 | 000000 | 4292A104 | 000000 | 43035A204 | 000000 | ||
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.
Smooth Cylinder with Flat-Cutter Tip
 |  |
Single-Cut Tooth |
Debur surfaces without damaging internal holes or threads. With smooth sides and teeth only on the end, these burs are often used to flatten the top of broken bolts, so bits won't wobble as you drill holes to remove them.
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" | 7/16" | 1" | 2 3/4" | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4241A215 | 000000 | ||
Smooth Cylinder with Pointed-Cutter Tip
 |  |
Single-Cut Teeth Tip |
With smooth sides and teeth only on the end, these burs prevent damage to internal holes while deburring. They’re often used to create a starter cone on broken bolts, improving drill alignment before extracting the bolt.
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. | Tip Angle | Overall Lg. | For Use On | Each | |||
Carbide | |||||||||
| 1/4" | 7/16" | 3/16" | 150° | 2" | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4241A221 | 000000 | ||
Cylinder with Round Tip
|
 |
Heavy Duty Double-Cut Tooth |
 |
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.
Heavy Duty Double-Cut Tooth—The best option to remove material quickly. These burs have the deepest flutes with the sharpest cutting angle and offset teeth on the tip. Although they break up chips the fastest, they leave the roughest finish.
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 | Heavy Duty Double-Cut Tooth (Coarse Grit) | Double-Cut Tooth (Medium Grit) | Single-Cut Tooth (Fine Grit) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | Bur Trade No. | For Use On | Each | Each | Each | |||||
Carbide | |||||||||||||
| 1/4" | 7/16" | 1" | 2 3/4" | SC-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4292A817 | 000000 | 4292A119 | 000000 | 43035A219 | 000000 | ||
Tree with Round Tip
|
 |
Double-Cut Tooth |
 |
Single-Cut Tooth |
Round tree burs are for curved surfaces and slots and curved holes with rounded bottoms.
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
|
 |
Heavy Duty Double-Cut Tooth |
 |
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.
Heavy Duty Double-Cut Tooth—The best option to remove material quickly. These burs have the deepest flutes with the sharpest cutting angle and offset teeth on the tip. Although they break up chips the fastest, they leave the roughest finish.
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 | Heavy Duty Double-Cut Tooth (Coarse Grit) | Double-Cut Tooth (Medium Grit) | Single-Cut Tooth (Fine Grit) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank Dia. | Dia. | Lg. | Overall Lg. | Bur Trade No. | For Use On | Each | Each | Each | |||||
Carbide | |||||||||||||
| 1/4" | 7/16" | 3/8" | 2 1/8" | SD-4 | Steel, Hardened Steel, Tool Steel, Stainless Steel, Titanium, Iron, Nickel | 4292A822 | 000000 | 4292A122 | 000000 | 43035A222 | 000000 | ||
Whisk
 |  |
Single-Cut Tooth |
Debur holes that intersect within your workpiece (cross holes). Made of flexible wire, these burs adjust to fit holes of various diameters.
High-Speed Steel—The choice for general purpose deburring on steel, though not as strong as carbide.
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 | |||
High-Speed Steel | ||||||||
| 1/8" | 7/16" | 1 3/16" | 4" | Steel, Hardened Steel, Tool Steel, Stainless Steel | 9978N17 | 000000 | ||
