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 44
- Drill America 1/32" Cobalt Jobber Length Drill Bit, DWDCO Series SKU 15579 $1.95
- Approved Vendor 1/32" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 15580 $1.70
- Drill America 1/32" HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 15581 $1.12
- Drill America 1/32" HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 15582 $0.47
- Approved Vendor 1/32" HSS Jobber Length Drill Bit Blank SKU 15584 $2.20
- Approved Vendor 1/32" HSS Left Hand Jobber Length Drill Bit SKU 15585 $4.86
- Approved Vendor 1/32" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 15586 $3.37
- Approved Vendor 1/32" HSS Polished Jobber Length Drill Bit, D/AP Series SKU 15587 $1.12
- Approved Vendor 1/32" HSS Polished Jobber Length Drill Bit, DWDP Series SKU 15588 $1.02
- Approved Vendor 1/32" HSS Taper Length Drill Bit SKU 15589 $5.69
- Approved Vendor 1/32" Solid Carbide Drill Bit SKU 15590 $16.35
- Alfa Tool 1/4 Cobalt Left Hand Jobber Drill SKU JDLCO93113 $18.22
- Alfa Tool 1/4 Cobalt Screw Machine Drill SKU SMCO50213 $5.02
- Alfa Tool 1/4 Cobalt Split Point Jobber Drill SKU CO50113 $5.24
- Alfa Tool 1/4 HS Alfa Usa Jobber Drill Split Point Tin SKU S150113TN $5.84
- Alfa Tool 1/4 X 10 SDS Plus Quadro Hammer Drill 15PC SKU SDSQ728 $245.38/pack of 15
- Alfa Tool 1/4 X 10-1/4 SDS Plus Quadro Hammer Drill SKU SDSQ72410 $17.22
- Alfa Tool 1/4 X 12-1/4 SDS Plus Quadro Hammer Drill SKU SDSQ72411 $23.98
- Alfa Tool 1/4 X 18 HSS Extra Long Drill SKU LB60909 $56.28
- Alfa Tool 1/4 X 4 SDS Plus Quadro Hammer Drill 25PC SKU SDSQ726 $189.04/pack of 25
- Alfa Tool 1/4 X 6 SDS Plus Quadro Hammer Drill 25PC SKU SDSQ727 $207.58/pack of 25
- Approved Vendor 1/4" 1MT Cobalt Taper Shank Drill Bit SKU 15979 $46.19
- DeWalt 1/4" Brad Point SKU 115-DW1706 $7.78
- Approved Vendor 1/4" Brad Point Drill Bit SKU 15986 $2.00
- Approved Vendor 1/4" Carbide Spade Drill Bit SKU 16013 $36.09
- Approved Vendor 1/4" Carbide Tipped 4 Flute Glass & Tile Drill Bit SKU 16014 $8.79
- Approved Vendor 1/4" Carbide Tipped 4 Flute Glass & Tile Drill Bit with Hex Shank SKU 16015 $9.67
- Approved Vendor 1/4" Carbide Tipped Die Drill Bit SKU 16016 $61.19
- Approved Vendor 1/4" Carbide Tipped Glass & Tile Drill Bit SKU 16017 $8.79
- Approved Vendor 1/4" Carbide Tipped Glass & Tile Drill Bit with Hex Shank SKU 16018 $9.67
- Approved Vendor 1/4" Carbide Tipped Jobber Length Drill Bit SKU 16019 $37.57
- Approved Vendor 1/4" Carbide Tipped Taper Length Drill Bit SKU 16020 $61.27
- Approved Vendor 1/4" Cobalt Extra Long Threaded Shank Drill Bit SKU 16024 $6.82
- Approved Vendor 1/4" Cobalt Jobber Length Drill Bit, D/ACO Series SKU 16025 $4.84
- Drill America 1/4" Cobalt Jobber Length Drill Bit, DWDCO Series SKU 16026 $3.51
- Approved Vendor 1/4" Cobalt Long Threaded Shank Drill Bit SKU 16027 $5.79
- DeWalt 1/4" Cobalt Screw Machine Length Drill SKU 115-DD4116B12 $3.63
- Approved Vendor 1/4" Cobalt Short Threaded Shank Drill Bit SKU 16031 $5.92
- Approved Vendor 1/4" Cobalt Split Point Stub Drill Bit SKU 16032 $4.56
- Approved Vendor 1/4" Cobalt Stubby Threaded Shank Drill Bit SKU 16033 $6.78
- Approved Vendor 1/4" Cobalt Taper Length Drill Bit SKU 16034 $22.64
- Approved Vendor 1/4" Cobalt Very Stubby Threaded Shank Drill Bit SKU 16035 $7.11
- Approved Vendor 1/4" Cryogenic HSS Black & Gold Jobber Length Drill Bit SKU 16036 $9.02
- Approved Vendor 1/4" Forstner Drill Bit SKU 16051 $5.58
- Approved Vendor 1/4" HSS 1MT Taper Shank Drill Bit SKU 16053 $7.33
- Approved Vendor 1/4" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 16054 $6.56
- Drill America 1/4" HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 16055 $2.00
- Drill America 1/4" HSS Black & Gold KFD Split Point Mechanics Length Drill Bit with 3-Flat Shank SKU 16056 $2.47