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Drill Bit Decimal Size Equivalents
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About Drill Bits
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About Masonry Drill Bits
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Round- and Hex-Shank Masonry Drill Bit Sets for Hammer Drills

Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. These bits drill faster and penetrate material with less pressure than rotary-only bits. Also known as percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Inch | |||||||
---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | |||||||
6 | 1/8"; 3/16"; 1/4"; 5/16"; 3/8"; 1/2" | Hex | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 000000 |
SDS-Plus-Shank Masonry Drill Bit Sets for Rotary Hammers


Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. These bits cannot be used with SDS-Max-drive rotary hammers. Drill holes using simultaneous rotary and hammering action. This type of bit drills faster and penetrates material with less pressure than rotary-only bits. Also called percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | ||||||
6 | 3/16"; 1/4"; 5/16"; 3/8"; 1/2" (6 5/8" Lg.); 1/2" (10 5/8" Lg.) | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 000000 |
Round-Shank Masonry Drill Bit Sets for Rotary Hammers

Use with handheld power drills, drill presses, and in hammer drills. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. These bits drill faster and penetrate material with less pressure than rotary-only bits. Also called percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | ||||||
4 | 1/4"; 5/16"; 3/8"; 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 000000 |
6 | 3/16"; 1/4"; 5/16"; 3/8"; 1/2"; 5/8" | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
6 | 1/4"; 5/16"; 3/8"; 1/2"; 5/8"; 3/4" | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
Chip-Clearing Round-Shank Masonry Drill Bit Sets for Rotary Hammers

A more controlled chip removal reduces heat buildup, making these bits good for use on brittle material such as block and brick. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. This type of bit drills faster and penetrates material with less pressure than rotary-only bits. Also called percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | ||||||
4 | 1/4"; 5/16"; 3/8"; 1/2" | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 000000 |
6 | 3/16"; 1/4"; 5/16"; 3/8"; 1/2"; 5/8" | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
6 | 1/4"; 5/16"; 3/8"; 1/2"; 5/8"; 3/4" | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
Multidiameter Drill Bit Sets

Steps with progressively larger diameters let you drill a range of sizes with one bit. Also known as step drills.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||
3 | 1 each in sizes 1/8"-1/2", 3/16"-1/2", 1/4"-3/4" | Hex | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000000 |
6-Flute Spline Bit Sets


Also known as Bristol bits, these have a knurled-end shank that allows finger tightening. For more torque, use with the included drive tool. Bits will not fit in standard bit screwdrivers.
Components Included | Bits Included | Drive Tools Included | Container Type | Material | Each | |
1/4" Knurled-End Hex Shank Size | ||||||
---|---|---|---|---|---|---|
5 Bits 1 Drive Tool | 6-Flute Spline: 0.060", 0.072", 0.096", 0.111", 0.145" (1 1/4" O'all Lg.) | 3 3/4" Lg. Tight-Clearance Ratcheting Bit Screwdriver | Plastic Pouch | Steel | 0000000 | 000000 |
Tri-Groove Bit Sets


Grip the indentations on the head of tri-groove fasteners. These bits have a groove in the shank and fit directly into power tools without an adapter.
Components Included | Bits Included | Material | Bit Material | Container Type | Each | |
1/4" Hex Shank Size for Power Tools | ||||||
---|---|---|---|---|---|---|
4 Bits | Tri-Groove: 0.375" O'all Dia. for No. 1-No. 8 (1 3/8" O'all Lg.) Tri-Groove: 0.5" O'all Dia. for No. 5-No. 11 (1 1/4" O'all Lg.) Tri-Groove: 0.75" O'all Dia. for No. 12-No. 13, 5/16" (1 1/4" O'all Lg.) Tri-Groove: 0.875" O'all Dia. for No. 8-No. 12, 1/4" (1 1/4" O'all Lg.) | Steel | High-Speed Steel | Plastic Pouch | 0000000 | 000000 |
Tamper-Resistant Hex Bit Sets


An opening at the tip accommodates the pin in the recess of tamper-resistant hex screws. These are also known as pin-in-hex or pin-in-socket bits
Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.
For technical drawings and 3-D models, click on a part number.
Components Included | Bits Included | Material | Container Type | Each | |
1/4" Hex Shank Size | |||||
---|---|---|---|---|---|
11 Bits | Tamper-Resistant Hex: 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (1" O'all Lg.) | Steel | Plastic Pouch | 0000000 | 000000 |
Drilled Spanner Bit Sets



Use with screws that have two drilled holes.
Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.
Hex shank bits for power tools have a groove in the shank and fit directly into power tools without an adapter. They offer more reach for recessed holes and less wobble compared to a hex shank bit used with an adapter.
Components Included | Bits Included | Material | Container Type | Each | |
1/4" Hex Shank Size for Power Tools | |||||
---|---|---|---|---|---|
4 Bits | Drilled Spanner for 0.108" Ctr.-to-Ctr.: No. 4 (2" O'all Lg.)—1 ea. Drilled Spanner for 0.162" Ctr.-to-Ctr.: No. 6 (2" O'all Lg.)—1 ea. Drilled Spanner for 0.186" Ctr.-to-Ctr.: No. 8 (2" O'all Lg.)—1 ea. Drilled Spanner for 0.209" Ctr.-to-Ctr.: No. 10 (2" O'all Lg.)—1 ea. | Steel | Plastic Pouch | 0000000 | 000000 |
5/16" Hex Shank Size | |||||
7 Bits | Drilled Spanner for 0.162" Ctr.-to-Ctr.: No. 6 (1 1/4" O'all Lg.)—2 ea. Drilled Spanner for 0.186" Ctr.-to-Ctr.: No. 8 (1 1/4" O'all Lg.)—2 ea. Drilled Spanner for 0.209" Ctr.-to-Ctr.: No. 10 (1 1/4" O'all Lg.)—2 ea. Drilled Spanner for 0.223" Ctr.-to-Ctr.: No. 12 (1 1/4" O'all Lg.)—1 ea. | Steel | Plastic Pouch | 0000000 | 00000 |
Ball-End Driver Shaft Sets



These assorted shafts attach to a handle or can be used with socket wrenches and power tools. They have a ball end that allows angled entry to make good contact with the recess when a standard-tip shaft can’t.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Includes | Max. Access Angle | Material | Finish | Container Type | Each | |
12 | 0.050" Hex Driver Shaft (3 7/16" O'all Lg.) 1/16" Hex Driver Shaft (3 1/2" O'all Lg.) 5/64" Hex Driver Shaft (3 5/8" O'all Lg.) 3/32" Hex Driver Shaft (3 13/16" O'all Lg.) 7/64" Hex Driver Shaft (4 5/16" O'all Lg.) 1/8" Hex Driver Shaft (4 1/2" O'all Lg.) 9/64" Hex Driver Shaft (4 13/16" O'all Lg.) 5/32" Hex Driver Shaft (5 1/8" O'all Lg.) 3/16" Hex Driver Shaft (5 1/2" O'all Lg.) 7/32" Hex Driver Shaft (5 15/16" O'all Lg.) 1/4" Hex Driver Shaft (6 3/4" O'all Lg.) 5/16" Hex Driver Shaft (7 5/16" O'all Lg.) | 25° | Steel | Black Phosphate Coated | Plastic Pouch | 0000000 | 000000 |
Tap and Drill Bit Sets

Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.
High-speed steel taps and drill bits have a longer tool life than carbon steel. Uncoated high-speed steel taps and drill bits are strong enough for most jobs but don’t last as long as other high-speed steel taps and drill bits. Use them for small-scale jobs.
Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
No. of Pieces | Chamfer Type | Tap Sizes Included | No. of Flutes | Drill Bit Sizes Included | Drill Bit Material | Container Type | Each | |
Uncoated High-Speed Steel Taps | ||||||||
---|---|---|---|---|---|---|---|---|
10 | Plug | 1 each of sizes: 1/4"-20 5/16"-18 3/8"-16 7/16"-14 1/2"-13 | 4 | 27/64" 5/16" 7 ga. F U | Black Oxide High-Speed Steel | Plastic Pouch | 00000000 | 000000 |
16 | Plug | 1 each of sizes: M3 × 0.50 mm M3.5 × 0.60 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.5 mm 2.9 mm 3.3 mm 4.2 mm 5.0 mm 6.75 mm 8.5 mm 10.25 mm | Black Oxide High-Speed Steel | Plastic Pouch | 0000000 | 000000 |