Drill Bits
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Expected delivery: Wed, Nov 18
This section covers twist drill bits for metal, wood and plastic, along with step drills, masonry bits and drill bit sets. Lengths include stub (screw machine), jobber, taper and extra-long. Materials range from general-purpose high-speed steel (HSS) to cobalt for stainless and tough alloys and solid carbide for production machining. Sizes come in fractional, letter, number (wire gauge) and metric series, with black oxide, bright, gold oxide and titanium nitride finishes.
What to check before you order
- Workpiece material. HSS suits mild steel, aluminum and wood. Cobalt holds up in stainless. Carbide-tipped masonry bits are for concrete and block in a hammer drill.
- Point style. A 135 degree split point self-centers and cuts harder metals. A 118 degree point is common for general work.
- Length. Stub length bits are stiffer and wander less. Use jobber length for general work and taper or extra-long only when you need reach.
- Shank. Check the chuck. Reduced shank bits fit a 1/2" chuck on larger sizes, and SDS shanks fit rotary hammers.
- Tap drill sizes. Number and letter sizes exist mainly to drill tap holes. Keep a chart near the drill press.
Common questions
What is a jobber length drill bit?
It is the standard general-purpose length, long enough for most hand drill and drill press work while still fairly rigid.
Learn more in our drill bit materials guide, browse Alfa Tool bits, or see taps and dies and all cutting tools.
Drill Bits: page 3
- Alfa Tool "M" HSS Blitz Bit Jobber Length Drill SKU BB74213 $6.22
- Approved Vendor "M" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6468 $18.79
- Approved Vendor "M" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6469 $13.34
- Alfa Tool "M" Probit Cone Drill 1/4-1 1/8 SKU MB52513 $69.08
- Alfa Tool "N" Cobalt Screw Machine Drill SKU SMCO60414 $10.10
- Alfa Tool "N" HSS Alfa Usa Jobber Drill Bright SKU J160214B $5.06
- Approved Vendor "N" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6470 $16.95
- Approved Vendor "N" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6471 $7.06
- Approved Vendor "N" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6472 $13.19
- Alfa Tool "N" HSS Blitz Bit Jobber Length Drill SKU BB74214 $6.58
- Approved Vendor "N" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6473 $18.79
- Approved Vendor "N" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6474 $13.44
- Alfa Tool "O" Cobalt Screw Machine Drill SKU SMCO60415 $11.12
- Approved Vendor "O" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6475 $16.95
- Approved Vendor "O" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6476 $7.16
- Approved Vendor "O" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6477 $13.19
- Approved Vendor "O" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6478 $20.66
- Approved Vendor "O" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6479 $13.62
- Alfa Tool "O" Solid Carbide Jobber Drill SKU ST60215 $53.34
- Alfa Tool "P" Cobalt Screw Machine Drill SKU SMCO60416 $12.30
- Alfa Tool "P" Cobalt Split Point Jobber Drill SKU CO60216 $10.28
- Approved Vendor "P" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6480 $18.35
- Approved Vendor "P" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6481 $8.02
- Approved Vendor "P" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6482 $14.75
- Approved Vendor "P" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6483 $21.97
- Approved Vendor "P" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6484 $15.28
- Alfa Tool "P" Solid Carbide Jobber Drill SKU ST60216 $53.34
- Alfa Tool "Q" Cobalt Screw Machine Drill SKU SMCO60417 $12.48
- Alfa Tool "Q" Cobalt Split Point Jobber Drill SKU CO60217 $11.20
- Approved Vendor "Q" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6485 $18.35
- Approved Vendor "Q" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6486 $8.02
- Approved Vendor "Q" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6487 $14.75
- Approved Vendor "Q" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6488 $22.72
- Approved Vendor "Q" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6489 $15.28
- Alfa Tool "R" Cobalt Screw Machine Drill SKU SMCO60418 $12.88
- Alfa Tool "R" Cobalt Split Point Jobber Drill SKU CO60218 $11.42
- Approved Vendor "R" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6490 $18.35
- Approved Vendor "R" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6491 $8.55
- Approved Vendor "R" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6492 $14.75
- Approved Vendor "R" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6493 $22.72
- Approved Vendor "R" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6494 $16.22
- Alfa Tool "S" Cobalt Screw Machine Drill SKU SMCO60419 $14.00
- Approved Vendor "S" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6495 $21.33
- Approved Vendor "S" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6496 $8.92
- Approved Vendor "S" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6497 $16.72
- Approved Vendor "S" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6498 $27.74
- Approved Vendor "S" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6499 $17.28
- Alfa Tool "T" Cobalt Screw Machine Drill SKU SMCO60420 $14.08