About Drill Bits
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About Masonry Drill Bits
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Drill Bit Decimal Size Equivalents
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Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications.
Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and oxide-coated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | Each | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 33/64" | 0.5156" | 6 5/8" | 4.03" | Round | 33/64" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
| 17/32" | 0.5313" | 6 5/8" | 4.01" | Round | 17/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 35/64" | 0.5469" | 6 5/8" | 3.99" | Round | 35/64" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 9/16" | 0.5625" | 6 5/8" | 3.96" | Round | 9/16" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 37/64" | 0.5781" | 6 5/8" | 3.94" | Round | 37/64" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
| 33/64" | 0.5156" | 6 5/8" | 4.03" | Round | 33/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 17/32" | 0.5313" | 6 5/8" | 4.01" | Round | 17/32" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 35/64" | 0.5469" | 6 5/8" | 3.99" | Round | 35/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 9/16" | 0.5625" | 6 5/8" | 3.96" | Round | 9/16" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 37/64" | 0.5781" | 6 5/8" | 3.94" | Round | 37/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Uncoated High-Speed Steel | |||||||||
| 33/64" | 0.5156" | 6 5/8" | 4.03" | Round | 33/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 17/32" | 0.5313" | 6 5/8" | 4.01" | Round | 17/32" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 35/64" | 0.5469" | 6 5/8" | 3.99" | Round | 35/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 9/16" | 0.5625" | 6 5/8" | 3.96" | Round | 9/16" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 37/64" | 0.5781" | 6 5/8" | 3.94" | Round | 37/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Cobalt Steel Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 33/64" | 0.5156" | 6 5/8" | 4" | Round | 33/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 17/32" | 0.5313" | 6 5/8" | 4" | Round | 17/32" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 35/64" | 0.5469" | 6 5/8" | 4" | Round | 35/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 9/16" | 0.5625" | 6 5/8" | 3.9" | Round | 9/16" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 37/64" | 0.5781" | 6 5/8" | 3.9" | Round | 37/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
| 33/64" | 0.5156" | 6 5/8" | 4.81" | Round | 33/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 17/32" | 0.5313" | 6 5/8" | 4.81" | Round | 17/32" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 35/64" | 0.5469" | 6 5/8" | 4.81" | Round | 35/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 9/16" | 0.5625" | 6 5/8" | 4.81" | Round | 9/16" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 37/64" | 0.5781" | 6 5/8" | 4.81" | Round | 37/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Cobalt Steel | ||||||||||
| 9/16" | 0.5625" | 6 5/8" | 3.64" | Round | 9/16" | Split | DIN 338 | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 000000 |
SDS-Plus-Shank Masonry Drill Bits for Rotary Hammers
The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers. 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.
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Specifications Met | For Use On | Each | |
Inch—Standard Point | ||||||||
|---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | ||||||||
| 7/32" | 0.2188" | 6 5/8" | 4" | SDS Plus | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 5/16" | 0.3125" | 6 5/8" | 4" | SDS Plus | ANSI B212.15 | Masonry, Concrete | 0000000 | 0000 |
| 3/8" | 0.375" | 6 5/8" | 4" | SDS Plus | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 7/16" | 0.4375" | 6 5/8" | 4" | SDS Plus | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 1/2" | 0.5" | 6 5/8" | 4" | SDS Plus | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |