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 26
- Approved Vendor #45 HSS Left Hand Jobber Length Drill Bit SKU 9719 $3.08
- Approved Vendor #45 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9720 $3.82
- Approved Vendor #45 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9721 $1.10
- Approved Vendor #45 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9722 $1.20
- Approved Vendor #45 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9723 $0.99
- Approved Vendor #45 HSS Split Point Stub Drill Bit, D/AST Series SKU 9724 $0.98
- Approved Vendor #45 HSS Split Point Stub Drill Bit, DWDST Series SKU 9725 $0.80
- Approved Vendor #45 HSS Taper Length Drill Bit SKU 9727 $4.74
- Approved Vendor #45 Solid Carbide Drill Bit SKU 9728 $15.91
- Drill America #45 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9730 $12.09
- Drill America #45 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9732 $3.30
- Approved Vendor #46 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9733 $1.80
- Drill America #46 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9734 $1.33
- Approved Vendor #46 Cobalt Long Threaded Shank Drill Bit SKU 9735 $5.08
- Approved Vendor #46 Cobalt Short Threaded Shank Drill Bit SKU 9736 $4.77
- Approved Vendor #46 Cobalt Split Point Stub Drill Bit SKU 9737 $1.89
- Approved Vendor #46 Cobalt Stubby Threaded Shank Drill Bit SKU 9738 $5.91
- Approved Vendor #46 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9739 $3.40
- Drill America #46 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9740 $0.96
- Approved Vendor #46 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9741 $2.74
- Approved Vendor #46 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9742 $3.50
- Drill America #46 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9743 $1.10
- Drill America #46 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9744 $0.74
- Approved Vendor #46 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9745 $4.51
- Approved Vendor #46 HSS Left Hand Jobber Length Drill Bit SKU 9746 $3.08
- Approved Vendor #46 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9747 $3.82
- Approved Vendor #46 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9748 $1.10
- Approved Vendor #46 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9749 $1.20
- Approved Vendor #46 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9750 $0.99
- Approved Vendor #46 HSS Split Point Stub Drill Bit, D/AST Series SKU 9751 $0.98
- Approved Vendor #46 HSS Split Point Stub Drill Bit, DWDST Series SKU 9752 $0.80
- Approved Vendor #46 HSS Taper Length Drill Bit SKU 9754 $4.74
- Approved Vendor #46 Solid Carbide Drill Bit SKU 9755 $15.91
- Drill America #46 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9757 $12.09
- Drill America #46 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9759 $3.30
- Approved Vendor #47 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9760 $1.80
- Drill America #47 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9761 $1.33
- Approved Vendor #47 Cobalt Long Threaded Shank Drill Bit SKU 9762 $5.08
- Approved Vendor #47 Cobalt Short Threaded Shank Drill Bit SKU 9763 $5.34
- Approved Vendor #47 Cobalt Split Point Stub Drill Bit SKU 9764 $1.89
- Approved Vendor #47 Cobalt Stubby Threaded Shank Drill Bit SKU 9765 $5.91
- Approved Vendor #47 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9766 $3.40
- Drill America #47 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9767 $0.96
- Approved Vendor #47 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9768 $2.74
- Approved Vendor #47 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9769 $3.50
- Drill America #47 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9770 $1.10
- Drill America #47 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9771 $0.74
- Approved Vendor #47 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9772 $4.51