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 2
- Approved Vendor "G" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6438 $13.97
- Approved Vendor "G" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6439 $10.43
- Alfa Tool "H" Cobalt Screw Machine Drill SKU SMCO60408 $7.90
- Alfa Tool "H" Cobalt Split Point Jobber Drill SKU CO60208 $7.42
- Approved Vendor "H" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6440 $11.93
- Approved Vendor "H" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6441 $5.72
- Approved Vendor "H" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6442 $10.26
- Alfa Tool "H" HSS Blitz Bit Jobber Length Drill SKU BB74208 $5.18
- Approved Vendor "H" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6443 $15.69
- Approved Vendor "H" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6444 $10.87
- Alfa Tool "H" Solid Carbide Screw Machine Drill SKU SCSM70408 $50.06
- Alfa Tool "I" Cobalt Screw Machine Drill SKU SMCO60409 $8.32
- Alfa Tool "I" Cobalt Split Point Jobber Drill SKU CO60209 $7.46
- Approved Vendor "I" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6445 $11.93
- Approved Vendor "I" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6446 $5.72
- Approved Vendor "I" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6447 $10.26
- Alfa Tool "I" HSS Blitz Bit Jobber Length Drill SKU BB74209 $5.44
- Approved Vendor "I" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6448 $14.73
- Approved Vendor "I" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6449 $10.87
- Alfa Tool "I" Solid Carbide Screw Machine Drill SKU SCSM70409 $50.06
- Alfa Tool "J" Cobalt Screw Machine Drill SKU SMCO60410 $8.78
- Alfa Tool "J" Cobalt Split Point Jobber Drill SKU CO60210 $7.60
- Approved Vendor "J" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6450 $14.12
- Approved Vendor "J" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6451 $6.15
- Approved Vendor "J" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6452 $11.22
- Alfa Tool "J" HSS Blitz Bit Jobber Length Drill SKU BB74210 $5.54
- Approved Vendor "J" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6453 $15.69
- Approved Vendor "J" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6454 $11.57
- Alfa Tool "K" Cobalt Screw Machine Drill SKU SMCO60411 $8.82
- Alfa Tool "K" Cobalt Split Point Jobber Drill SKU CO60211 $7.98
- Alfa Tool "K" HSS Alfa Usa Split Point Jobber Drill SKU S160211 $4.80
- Approved Vendor "K" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6455 $14.12
- Approved Vendor "K" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6456 $6.65
- Approved Vendor "K" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6457 $12.00
- Alfa Tool "K" HSS Blitz Bit Jobber Length Drill SKU BB74211 $5.78
- Approved Vendor "K" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6458 $15.69
- Approved Vendor "K" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6459 $11.57
- Alfa Tool "L" Cobalt Screw Machine Drill SKU SMCO60412 $9.46
- Approved Vendor "L" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6460 $15.98
- Approved Vendor "L" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6461 $6.65
- Approved Vendor "L" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6462 $12.51
- Alfa Tool "L" HSS Blitz Bit Jobber Length Drill SKU BB74212 $5.94
- Approved Vendor "L" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 6463 $17.73
- Approved Vendor "L" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 6464 $13.34
- Alfa Tool "M" Cobalt Screw Machine Drill SKU SMCO60413 $9.76
- Approved Vendor "M" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 6465 $16.95
- Approved Vendor "M" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 6466 $7.06
- Approved Vendor "M" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 6467 $13.19