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 10
- Approved Vendor #19 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 8533 $7.14
- Approved Vendor #19 HSS Left Hand Jobber Length Drill Bit SKU 8534 $3.94
- Approved Vendor #19 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 8535 $5.51
- Approved Vendor #19 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 8536 $1.54
- Approved Vendor #19 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 8537 $1.70
- Approved Vendor #19 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 8538 $1.22
- Approved Vendor #19 HSS Split Point Stub Drill Bit, D/AST Series SKU 8539 $1.48
- Approved Vendor #19 HSS Split Point Stub Drill Bit, DWDST Series SKU 8540 $1.23
- Approved Vendor #19 HSS Taper Length Drill Bit SKU 8542 $8.76
- Approved Vendor #19 Solid Carbide Drill Bit SKU 8543 $26.53
- Approved Vendor #19 Tin Coated Jobber Length Drill Bit SKU 8544 $5.01
- DeWalt #19 Wire Cobalt Jobber Length Drill SKU 115-DD4219B12 $2.82
- Drill America #19 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8546 $8.30
- Drill America #19 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8548 $3.03
- Approved Vendor #2 Carbide Tipped Jobber Length Drill Bit SKU 8550 $40.52
- Approved Vendor #2 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 8554 $5.06
- Drill America #2 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 8555 $3.69
- Approved Vendor #2 Cobalt Long Threaded Shank Drill Bit SKU 8556 $6.70
- Alfa Tool #2 Cobalt Screw Machine Drill SKU SMCO60302 $5.38
- Approved Vendor #2 Cobalt Short Threaded Shank Drill Bit SKU 8557 $6.50
- Approved Vendor #2 Cobalt Split Point Stub Drill Bit SKU 8558 $5.07
- Approved Vendor #2 Cobalt Stubby Threaded Shank Drill Bit SKU 8559 $6.89
- Approved Vendor #2 High Speed Steel Black & Gold Round Shank Step Drill Bit, (3/16" - 1/2" by 1/16") SKU 8561 $66.30
- Approved Vendor #2 High Speed Steel Round Shank Step Drill Bit, (3/16" - 1/2" by 1/16") SKU 8563 $66.30
- Approved Vendor #2 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 8565 $7.15
- Drill America #2 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 8566 $2.08
- Approved Vendor #2 HSS Black & Gold Step Drill Bit (3/16" - 1/2" by 1/16") SKU 8568 $21.51
- Approved Vendor #2 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 8569 $4.90
- Approved Vendor #2 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 8570 $6.77
- Drill America #2 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 8571 $2.33
- Drill America #2 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 8572 $1.34
- Approved Vendor #2 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 8573 $12.01
- Approved Vendor #2 HSS Left Hand Jobber Length Drill Bit SKU 8575 $6.36
- Approved Vendor #2 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 8576 $7.92
- Approved Vendor #2 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 8577 $2.33
- Approved Vendor #2 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 8580 $2.54
- Approved Vendor #2 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 8581 $1.95
- Approved Vendor #2 HSS Split Point Stub Drill Bit, D/AST Series SKU 8582 $2.10
- Approved Vendor #2 HSS Split Point Stub Drill Bit, DWDST Series SKU 8583 $1.74
- Approved Vendor #2 HSS Step Drill Bit (3/16" - 1/2" by 1/16") SKU 8584 $21.51
- Approved Vendor #2 HSS Taper Length Drill Bit SKU 8587 $10.00
- Approved Vendor #2 Regular HSS Combined Drill Bit and Countersink SKU 8592 $2.77
- Approved Vendor #2 Solid Carbide Combined Drill Bit and Countersink SKU 8593 $31.30
- Approved Vendor #2 Solid Carbide Drill Bit SKU 8594 $37.08
- Approved Vendor #2 Tin Coated Jobber Length Drill Bit SKU 8597 $6.40
- Drill America #2 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8602 $10.25
- Drill America #2 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8607 $4.23
- Approved Vendor #2-0 Regular HSS Combined Drill Bit and Countersink SKU 8608 $3.42