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 35
- Approved Vendor 9/16"-18 HSS Machine and Fraction Hand Plug Tap SKU 31089 $32.40
- Approved Vendor 9/16"-18 HSS Machine and Fraction Hand Taper Tap SKU 31088 $32.40
- Approved Vendor 9/16"-18 HSS Nut Tap SKU 31567 $112.74
- Approved Vendor 9/16"-18 HSS Plug Tap and 33/64" HSS 1/2" Shank Drill Bit SKU 31058 $32.44
- Milwaukee 9/16"-18 NF 1-7/16" Hexthreading Die SKU 495-49-57-5368 $16.91
- Approved Vendor 9/16"-18 STI Tap, High Speed Steel SKU 30863 $39.73
- Approved Vendor 9/16"-18 UNF Carbon Steel Hex Rethreading Die SKU 33245 $11.57
- Approved Vendor 9/16"-18 UNF HSS 3 Flute Spiral Point Tap SKU 31368 $19.91
- 9/16"-18 UNF HSS 3 Flute Spiral Point Tap, Tap America SKU 33177 $29.90
- Approved Vendor 9/16"-18 UNF HSS Bottoming Tap SKU 31127 $16.70
- 9/16"-18 UNF HSS Bottoming Tap, Tap America SKU 31145 $24.99
- Approved Vendor 9/16"-18 UNF HSS Left 4 Flute Bottoming Tap SKU 31547 $24.09
- Approved Vendor 9/16"-18 UNF HSS Left 4 Flute Plug Tap SKU 31539 $24.09
- Approved Vendor 9/16"-18 UNF HSS Left 4 Flute Taper Tap SKU 31541 $24.09
- Approved Vendor 9/16"-18 UNF HSS Plug Tap SKU 31126 $16.70
- 9/16"-18 UNF HSS Plug Tap, Tap America SKU 31142 $24.99
- Approved Vendor 9/16"-18 UNF HSS Taper Tap SKU 31117 $16.70
- 9/16"-18 UNF HSS Taper Tap, Tap America SKU 31139 $24.99
- 9/16"-18 UNF Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 31559 $46.36
- Approved Vendor 9/16"-18 UNF X 1-1/2" OD HSS Left Round Adjustable Die SKU 30588 $47.18
- Approved Vendor 9/16"-18 UNF X 2" OD HSS Left Round Adjustable Die SKU 30591 $100.89
- Approved Vendor 9/16"-18 x 8" HSS Pulley Tap SKU 31573 $74.10
- Approved Vendor 9/16"-20 UNS HSS Plug Tap SKU 31259 $24.74
- Approved Vendor 9/16"-20 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 30532 $51.96
- Approved Vendor 9/16"-24 UNS HSS Plug Tap SKU 31254 $24.74
- Approved Vendor 9/16"-24 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 30536 $51.96
- Approved Vendor 9/16"-27 UNS HSS Plug Tap SKU 31249 $24.74
- Approved Vendor 9/16"-27 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 30535 $51.96
- Approved Vendor 9/16"-28 UNS HSS Plug Tap SKU 31253 $24.74
- Approved Vendor 9/16"-32 UNS HSS Plug Tap SKU 31246 $24.74
- Approved Vendor 9/16"-36 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 30537 $51.96
- Approved Vendor 9/16"-40 UNS HSS Plug Tap SKU 31256 $24.74
- Approved Vendor 9/16"-40 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 30534 $51.96
- Alfa Tool 9/16-12 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170940 $59.80
- Alfa Tool 9/16-12 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170940 $59.80
- Alfa Tool 9/16-12 HSS Eco Pro Hand Tap-Bottoming SKU HTB270040 $18.58
- Alfa Tool 9/16-12 HSS Eco Pro Hand Tap-Taper SKU HTT270040 $18.58
- Alfa Tool 9/16-12 HSS Eco Spiral Pointed Tap SKU SPT270138 $22.86
- Alfa Tool 9/16-12 HSS Usa Spiral Pointed Tap SKU SPT170138 $27.80
- Alfa Tool 9/16-18 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170941 $59.80
- Alfa Tool 9/16-18 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170941 $59.80
- Alfa Tool 9/16-18 HSS Eco Pro Hand Tap-Bottoming SKU HTB270041 $18.58
- Alfa Tool 9/16-18 HSS Eco Pro Hand Tap-Taper SKU HTT270041 $18.58
- Alfa Tool 9/16-18 HSS Eco Spiral Pointed Tap SKU SPT270139 $22.86
- Alfa Tool 9/16-18 HSS Usa Spiral Pointed Tap SKU SPT170139 $27.80
- Approved Vendor 9/32" HSS Spiral Flute Hand Expansion Reamer SKU 31735 $146.18
- Approved Vendor 9/32"-32 UNS X 1" OD HSS Round Adjustable Die SKU 30515 $33.01
- Irwin Adjustable Tap Socket -Small SKU 585-3095001A $33.59