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 25
- Approved Vendor #43 HSS Left Hand Jobber Length Drill Bit SKU 9665 $3.08
- Approved Vendor #43 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9666 $3.61
- Approved Vendor #43 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9667 $1.03
- Approved Vendor #43 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9668 $1.20
- Approved Vendor #43 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9669 $0.99
- Approved Vendor #43 HSS Split Point Stub Drill Bit, D/AST Series SKU 9670 $0.98
- Approved Vendor #43 HSS Split Point Stub Drill Bit, DWDST Series SKU 9671 $0.80
- Approved Vendor #43 HSS Taper Length Drill Bit SKU 9673 $4.74
- Approved Vendor #43 Solid Carbide Drill Bit SKU 9674 $15.91
- Drill America #43 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9676 $12.09
- Drill America #43 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9678 $3.30
- Approved Vendor #44 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9679 $1.80
- Drill America #44 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9680 $1.33
- Approved Vendor #44 Cobalt Long Threaded Shank Drill Bit SKU 9681 $5.08
- Approved Vendor #44 Cobalt Short Threaded Shank Drill Bit SKU 9682 $4.77
- Approved Vendor #44 Cobalt Split Point Stub Drill Bit SKU 9683 $1.89
- Approved Vendor #44 Cobalt Stubby Threaded Shank Drill Bit SKU 9684 $5.91
- Approved Vendor #44 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9685 $3.40
- Drill America #44 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9686 $0.96
- Approved Vendor #44 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9687 $2.74
- Approved Vendor #44 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9688 $3.50
- Drill America #44 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9689 $1.03
- Drill America #44 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9690 $0.74
- Approved Vendor #44 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9691 $4.51
- Approved Vendor #44 HSS Left Hand Jobber Length Drill Bit SKU 9692 $3.08
- Approved Vendor #44 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9693 $3.61
- Approved Vendor #44 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9694 $1.03
- Approved Vendor #44 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9695 $1.20
- Approved Vendor #44 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9696 $0.99
- Approved Vendor #44 HSS Split Point Stub Drill Bit, D/AST Series SKU 9697 $0.98
- Approved Vendor #44 HSS Split Point Stub Drill Bit, DWDST Series SKU 9698 $0.80
- Approved Vendor #44 HSS Taper Length Drill Bit SKU 9700 $4.74
- Approved Vendor #44 Solid Carbide Drill Bit SKU 9701 $15.91
- Drill America #44 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9703 $12.09
- Drill America #44 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9705 $3.30
- Approved Vendor #45 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9706 $1.80
- Drill America #45 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9707 $1.33
- Approved Vendor #45 Cobalt Long Threaded Shank Drill Bit SKU 9708 $5.08
- Approved Vendor #45 Cobalt Short Threaded Shank Drill Bit SKU 9709 $4.77
- Approved Vendor #45 Cobalt Split Point Stub Drill Bit SKU 9710 $1.89
- Approved Vendor #45 Cobalt Stubby Threaded Shank Drill Bit SKU 9711 $5.91
- Approved Vendor #45 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9712 $3.40
- Drill America #45 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9713 $0.96
- Approved Vendor #45 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9714 $2.74
- Approved Vendor #45 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9715 $3.50
- Drill America #45 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9716 $1.10
- Drill America #45 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9717 $0.74
- Approved Vendor #45 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9718 $4.51