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 43
- Approved Vendor 1/2" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 14510 $12.92
- Approved Vendor 1/2" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 14511 $23.52
- Drill America 1/2" HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 14512 $9.21
- Drill America 1/2" HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 14513 $3.99
- Approved Vendor 1/2" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 14514 $44.08
- Approved Vendor 1/2" HSS Jobber Length Drill Bit Blank SKU 14515 $18.42
- Approved Vendor 1/2" HSS Left Hand Jobber Length Drill Bit SKU 14516 $22.91
- Approved Vendor 1/2" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 14517 $24.73
- Approved Vendor 1/2" HSS Polished Jobber Length Drill Bit, D/AP Series SKU 14518 $9.21
- Approved Vendor 1/2" HSS Polished Jobber Length Drill Bit, DWDP Series SKU 14519 $7.89
- Approved Vendor 1/2" HSS Reduced Shank 118° Drill Bit, 1/4" Shank SKU 209 $35.63
- Approved Vendor 1/2" HSS Reduced Shank Drill Bit 1/4" Shank, D/ARSD Series SKU 14521 $12.78
- Approved Vendor 1/2" HSS Reduced Shank Drill Bit 1/4" Shank, DWDRSD Series SKU 14522 $11.50
- Approved Vendor 1/2" HSS Reduced Shank Drill Bit 3/8" Shank, D/ARSD Series SKU 14523 $12.09
- Approved Vendor 1/2" HSS Reduced Shank Drill Bit 3/8" Shank, DWDRSD Series SKU 14524 $9.79
- Approved Vendor 1/2" HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 14529 $10.52
- Approved Vendor 1/2" HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 14530 $7.49
- Approved Vendor 1/2" HSS Split Point Stub Drill Bit, D/AST Series SKU 14531 $8.90
- Approved Vendor 1/2" HSS Split Point Stub Drill Bit, DWDST Series SKU 14532 $7.17
- Approved Vendor 1/2" HSS Taper Length Drill Bit SKU 14540 $17.11
- Approved Vendor 1/2" Solid Carbide Drill Bit SKU 14563 $128.64
- Approved Vendor 1/2" Stepped Point Cobalt Drill Bit with 3-Flat Shank SKU 14567 $34.18
- Approved Vendor 1/2" Tin Coated Jobber Length Drill Bit SKU 14576 $18.86
- DeWalt 1/2" VSR Heavy Duty Drill 0-850RPM-3- SKU 115-DW235G $200.39
- Approved Vendor 1/2" x 12" SDS Plus Carbide Tipped Hammer Masonry Drill Bit SKU 14629 $43.07
- Approved Vendor 1/2" X 12" HSS Aircraft Extension Drill Bit, D/AA/C SKU 14631 $32.71
- Drill America 1/2" X 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 14632 $23.96
- Approved Vendor 1/2" x 12" SDS-Plus 4-Flute Cross Tip Hammer Bit Drill Bit SKU 14634 $16.05
- Approved Vendor 1/2" x 12" SDS-Plus Hammer Bit Drill Bit SKU 14635 $13.96
- Approved Vendor 1/2" x 13" 3/8" Shank Carbide Tipped Masonry Drill Bit SKU 14636 $9.66
- Approved Vendor 1/2" x 18" SDS Plus Carbide Tipped Hammer Masonry Drill Bit SKU 14640 $69.39
- Approved Vendor 1/2" x 18" Carbide Tipped Masonry Drill Bit SKU 14641 $15.19
- Approved Vendor 1/2" x 18" SDS-Plus 4-Flute Cross Tip Hammer Bit Drill Bit SKU 14645 $26.06
- Approved Vendor 1/2" x 18" SDS-Plus Hammer Bit Drill Bit SKU 14646 $22.66
- Approved Vendor 1/2" x 24" Carbide Tipped Masonry Drill Bit SKU 14658 $15.99
- DeWalt 1/2" X 24" Round Shank Masonry Drill Bit SKU 115-DW5238 $54.12
- Approved Vendor 1/2" x 30" Carbide Tipped Masonry Drill Bit SKU 14676 $18.46
- Approved Vendor 1/2" x 4" Carbide Tipped Masonry Drill Bit SKU 14678 $4.23
- Approved Vendor 1/2" x 6" SDS Plus Carbide Tipped Hammer Masonry Drill Bit SKU 14687 $26.04
- Approved Vendor 1/2" x 6" 1/4" Shank Carbide Tipped Masonry Drill Bit SKU 14688 $4.53
- Approved Vendor 1/2" x 6" 3/8" Shank Carbide Tipped Masonry Drill Bit SKU 14690 $4.53
- Approved Vendor 1/2" x 6" HSS Aircraft Extension Drill Bit, D/AA/C SKU 14692 $26.31
- Drill America 1/2" x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 14693 $17.88
- Approved Vendor 1/2" x 6" SDS-Plus 4-Flute Cross Tip Hammer Bit Drill Bit SKU 14694 $9.58
- Approved Vendor 1/2" x 6" SDS-Plus Hammer Bit Drill Bit SKU 14695 $8.33
- Approved Vendor 1/2"-13 HSS Combined Drill Bit & Tap (Drap) SKU 14794 $67.97
- Approved Vendor 1/32" Carbide Spade Drill Bit SKU 15577 $17.80
- Approved Vendor 1/32" Cobalt Jobber Length Drill Bit, D/ACO Series SKU 15578 $2.68