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 38
- Approved Vendor #8 HSS Left Hand Jobber Length Drill Bit SKU 11120 $5.03
- Approved Vendor #8 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11121 $6.86
- Approved Vendor #8 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11122 $1.98
- Approved Vendor #8 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 11124 $2.19
- Approved Vendor #8 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 11125 $1.64
- Approved Vendor #8 HSS Split Point Stub Drill Bit, D/AST Series SKU 11126 $1.79
- Approved Vendor #8 HSS Split Point Stub Drill Bit, DWDST Series SKU 11127 $1.49
- Approved Vendor #8 HSS Taper Length Drill Bit SKU 11130 $9.64
- Approved Vendor #8 Regular HSS Combined Drill Bit and Countersink SKU 11139 $12.22
- Approved Vendor #8 Solid Carbide Drill Bit SKU 11166 $32.10
- DeWalt #8 Wire Cobalt Screw Machine Length Drill SKU 115-DD4308B12 $3.01
- Alfa Tool #80 HSS Alfa Usa Jobber Drill Bright SKU J160180B $6.84
- DeWalt #9 Wire Cobalt Jobber Length Drill SKU 115-DD4209B12 $3.37
- Alfa Tool 1 1/4 HSS Eco Pro S&D Drill 1/2" Shank SKU SD250431 $55.32
- Irwin 1 1/4" 3-Cutter Self Feed Bit SKU 585-3046006 $46.52
- Alfa Tool 1 3/16 HSS Eco Pro S&D Drill 1/2" Shank SKU SD250429 $55.32
- Alfa Tool 1 3/8 Cobalt S&D Drill 1/2" Shank SKU SDCO50435 $281.12
- Alfa Tool 1 3/8 HSS Eco Pro S&D Drill 1/2" Shank SKU SD250435 $65.74
- Alfa Tool 1 5/16 HSS Eco Pro S&D Drill 1/2" Shank SKU SD250433 $65.74
- Alfa Tool 1 5/8" Bormax Forstner Bit SKU FBM64022 $56.30
- Alfa Tool 1 7/16 HSS Eco Pro S&D Drill 1/2" Shank SKU SD250437 $89.70
- Alfa Tool 1 7/8" Bormax Forstner Bit SKU FBM64024 $59.80
- Alfa Tool 1 HSS Taper Length Drill SKU TL50361 $94.44
- DeWalt 1 In BL D-Handle SDS Plus HMR Bare SKU 115-DCH133B $347.22
- Milwaukee 1 In. Forstner Bit SKU 495-48-14-1001 $26.60
- Milwaukee 1 In. x 6 in. Speed Feedwood Bit SKU 495-48-13-0088 $23.91
- Alfa Tool 1" Blitz Bit S&D Drill 1/2" Shank Carded SKU SDBB50423C $59.30
- Alfa Tool 1" BORMAX3 Carbide Tipped Forstner SKU FBM63225 $69.60
- Approved Vendor 1" Cobalt HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 152 $181.21
- Alfa Tool 1" Cobalt S&D Drill 1/2" Shank SKU SDCO50423 $114.52
- Alfa Tool 1" Cobalt S&D Drill 1/2" Shank Carded SKU SDCO50423C $117.42
- DeWalt 1" D-Handles SDS w/ Shocks SKU 115-D25262K $305.36
- Approved Vendor 1" HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 153 $61.32
- Alfa Tool 1-1/16 Blitz Bit S&D Drill 1/2" Shank SKU SDBB50425 $78.06
- Alfa Tool 1-1/16 Cobalt S&D Drill 1/2" Shank SKU SDCO50425 $177.76
- Milwaukee 1-1/16 In. S&D Black Oxide Drill Bit SKU 495-48-89-2755 $111.23
- Approved Vendor 1-1/16" Cobalt HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 157 $224.61
- Approved Vendor 1-1/16" HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 158 $89.93
- Alfa Tool 1-1/2 Blitz Bit S&D Drill 1/2" Shank SKU SDBB50439 $203.84
- Alfa Tool 1-1/2 Cobalt S&D Drill 1/2" Shank SKU SDCO50439 $302.04
- Irwin 1-1/2" 3-Cutter Self Feed Bit SKU 585-3046008 $47.67
- Alfa Tool 1-1/2" BORMAX3 Carbide Tipped Forstner SKU FBM63233 $88.48
- Approved Vendor 1-1/2" Cobalt HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 193 $563.85
- Approved Vendor 1-1/2" HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 192 $205.80
- Irwin 1-1/2" X 17" Weldtech Ship Auger Tubed SKU 585-3043016 $71.76
- Approved Vendor 1-1/32" HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 155 $89.93
- Alfa Tool 1-1/4 Blitz Bit S&D Drill 1/2" Shank SKU SDBB50431 $93.28
- Alfa Tool 1-1/4 Cobalt S&D Drill 1/2" Shank SKU SDCO50431 $259.52