Taps & Dies
2,000+ products
Expected delivery: Wed, Nov 18
Taps cut internal threads and dies cut external threads. Maintenance techs use them to repair stripped holes and chase damaged threads, and machine shops use them in production. This section covers hand taps in taper, plug and bottoming styles, spiral point (gun) taps for through holes, spiral flute taps for blind holes, NPT pipe taps, thread-forming taps, round adjustable dies, hex rethreading dies, tap wrenches, die stocks and tap and die sets. Threads include UNC, UNF, metric and NPT.
What to check before you order
- Thread size and pitch. Confirm the exact size, for example 1/4"-20 or M6 x 1.0. Our thread sizes guide explains the callouts.
- Hole type. Spiral point taps push chips forward and suit through holes. Spiral flute taps pull chips out and suit blind holes.
- Tap drill. Drill the correct tap drill size first. Too small a hole is a common cause of broken taps.
- Material. HSS taps cover most work. Cobalt or coated taps help in stainless and tougher alloys. Always use tapping fluid in steel.
- Pipe threads. NPT taps are tapered, so tap depth controls the fit.
Common questions
What size drill do I need for a 1/4-20 tap?
A #7 drill is the common choice for about 75 percent thread engagement in a 1/4"-20 hole.
See drill bits, the Alfa Tool line, and all cutting tools.
Taps & Dies: page 34
- Alfa Tool 8 X 1.0mm HS Usa Spiral Pointed Tap SKU SPTM170165 $10.98
- Alfa Tool 8 X 1.25mm HS Usa Spiral Pointed Tap SKU SPTM170164 $10.98
- Alfa Tool 8-32 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170913 $14.08
- Alfa Tool 8-32 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170913 $14.08
- Alfa Tool 8-32 HSS Combination Drill Tap 1/4 Hex Shank SKU DTML66104 $21.54
- Alfa Tool 8-32 HSS Eco Spiral Pointed Tap SKU SPT270113 $5.30
- Alfa Tool 8-32 HSS Hand Tap .005 Oversize SKU HTO71413 $6.12
- Approved Vendor 8-32 HSS Machine and Fraction Hand Bottoming Tap SKU 31033 $8.21
- Approved Vendor 8-32 HSS Machine and Fraction Hand Plug Tap SKU 31032 $8.21
- Approved Vendor 8-32 HSS Machine and Fraction Hand Taper Tap SKU 31031 $8.21
- Alfa Tool 8-32 HSS Usa Spiral Pointed Tap SKU SPT170113 $7.58
- Milwaukee 8-32 NC 1-Inch Hex Threading Die SKU 495-49-57-5321 $7.90
- Milwaukee 8-32 NC Straight Flute Plug Tap & #29 Drill Bit SKU 495-49-57-5521 $9.65
- Alfa Tool 8-36 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170914 $14.08
- Alfa Tool 8-36 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170914 $14.08
- Alfa Tool 8-36 HSS Eco Spiral Pointed Tap SKU SPT270114 $5.30
- Alfa Tool 8-36 HSS Hand Tap .005 Oversize SKU HTO71414 $6.12
- Approved Vendor 8-36 HSS Machine and Fraction Hand Bottoming Tap SKU 31076 $8.48
- Approved Vendor 8-36 HSS Machine and Fraction Hand Plug Tap SKU 31075 $8.48
- Approved Vendor 8-36 HSS Machine and Fraction Hand Taper Tap SKU 31074 $8.48
- Alfa Tool 8-36 HSS Usa Spiral Pointed Tap SKU SPT170114 $7.94
- Approved Vendor 9/16" H3 HSS Machine and Fraction Hand Taper Tap SKU 31055 $32.40
- Approved Vendor 9/16" HSS 2MT Spiral Flute Bridge Reamer SKU 28998 $44.45
- Approved Vendor 9/16" HSS Spiral Flute Hand Expansion Reamer SKU 31732 $178.72
- Approved Vendor 9/16" HSS Spiral Flute Hand Reamer SKU 31716 $59.38
- Approved Vendor 9/16"-12 HSS Machine and Fraction Hand Bottoming Tap SKU 31057 $32.40
- Approved Vendor 9/16"-12 HSS Machine and Fraction Hand Plug Tap SKU 31056 $32.40
- Approved Vendor 9/16"-12 HSS Nut Tap SKU 31569 $112.74
- Approved Vendor 9/16"-12 HSS Plug Tap and 31/64" HSS Drill Bit SKU 31084 $26.69
- Milwaukee 9/16"-12 NC 1-7/16" Hexthreading Die SKU 495-49-57-5365 $16.91
- Approved Vendor 9/16"-12 STI Tap, High Speed Steel SKU 30866 $39.75
- Approved Vendor 9/16"-12 UNC Carbon Steel Hex Rethreading Die SKU 33242 $11.57
- Approved Vendor 9/16"-12 UNC HSS 3 Flute Spiral Point Tap SKU 31371 $19.91
- Approved Vendor 9/16"-12 UNC HSS Bottoming Tap SKU 31124 $16.70
- 9/16"-12 UNC HSS Bottoming Tap, Tap America SKU 31137 $24.99
- Approved Vendor 9/16"-12 UNC HSS Left 4 Flute Bottoming Tap SKU 31549 $24.09
- Approved Vendor 9/16"-12 UNC HSS Left 4 Flute Plug Tap SKU 31543 $24.09
- Approved Vendor 9/16"-12 UNC HSS Left 4 Flute Taper Tap SKU 31544 $24.09
- Approved Vendor 9/16"-12 UNC HSS Plug Tap SKU 31120 $16.70
- 9/16"-12 UNC HSS Plug Tap, Tap America SKU 31136 $24.99
- Approved Vendor 9/16"-12 UNC HSS Taper Tap SKU 31123 $16.70
- Approved Vendor 9/16"-12 UNC X 1-1/2" OD HSS Left Round Adjustable Die SKU 30589 $47.18
- Approved Vendor 9/16"-12 UNC X 2" OD HSS Left Round Adjustable Die SKU 30590 $100.89
- 9/16"-12 UNF HSS 3 Flute Spiral Point Tap, Tap America SKU 33175 $29.90
- 9/16"-12 UNF Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 31558 $46.36
- Approved Vendor 9/16"-16 UNS HSS Plug Tap SKU 31255 $24.74
- Approved Vendor 9/16"-16 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 30533 $51.96
- Approved Vendor 9/16"-18 HSS Machine and Fraction Hand Bottoming Tap SKU 31090 $32.40