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 32
- Alfa Tool 7/16-14 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170936 $33.12
- Alfa Tool 7/16-14 HSS Combination Drill Tap 1/4 Shank SKU DTML66113 $38.50
- Alfa Tool 7/16-14 HSS Eco Spiral Pointed Tap SKU SPT270134 $12.60
- Alfa Tool 7/16-14 HSS Spiral Pointed Tap .005 Oversized SKU SPTO71534 $14.00
- Alfa Tool 7/16-14 HSS Usa Spiral Pointed Tap SKU SPT170134 $14.54
- Alfa Tool 7/16-14 Multi Purpose Spiral Fluted Tap SKU HPMP70936 $67.52
- Alfa Tool 7/16-20 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170937 $33.12
- Alfa Tool 7/16-20 HSS Black Oxide Alfa Usa Hand Tap Bottoming SKU HTB80037 $14.90
- Alfa Tool 7/16-20 HSS Eco Spiral Pointed Tap SKU SPT270135 $12.60
- Alfa Tool 7/16-20 HSS Usa Spiral Pointed Tap SKU SPT170135 $14.54
- Alfa Tool 7/16-20 Multi Purpose Spiral Fluted Tap SKU HPMP70937 $67.52
- Approved Vendor 7/32"-24 UNS X 1" OD HSS Round Adjustable Die SKU 30513 $33.01
- Approved Vendor 7/32"-32 UNS HSS Plug Tap SKU 31237 $18.02
- Approved Vendor 7/32"-40 UNS X 1" OD HSS Round Adjustable Die SKU 30514 $33.01
- Approved Vendor 7/8" HSS 3MT Spiral Flute Bridge Reamer SKU 28997 $88.64
- Approved Vendor 7/8" HSS Spiral Flute Hand Expansion Reamer SKU 31733 $238.63
- Approved Vendor 7/8" HSS Spiral Flute Hand Reamer SKU 31715 $86.12
- Approved Vendor 7/8"-10 UNS X 2" OD HSS Round Adjustable Die SKU 30483 $111.15
- Approved Vendor 7/8"-12 UNS HSS Plug Tap SKU 31258 $45.54
- Approved Vendor 7/8"-14 HSS Machine and Fraction Hand Bottoming Tap SKU 31097 $76.97
- Approved Vendor 7/8"-14 HSS Machine and Fraction Hand Plug Tap SKU 31096 $76.97
- Approved Vendor 7/8"-14 HSS Machine and Fraction Hand Taper Tap SKU 31095 $76.97
- Approved Vendor 7/8"-14 HSS Plug Tap and 13/16" HSS 1/2" Shank Drill Bit SKU 31067 $68.73
- Approved Vendor 7/8"-14 STI Tap, High Speed Steel SKU 30862 $127.50
- Approved Vendor 7/8"-14 UNF Carbon Steel Hex Rethreading Die SKU 33246 $19.77
- Approved Vendor 7/8"-14 UNF HSS 3 Flute Spiral Point Tap SKU 31372 $47.84
- Approved Vendor 7/8"-14 UNF HSS Bottoming Tap SKU 31131 $38.72
- 7/8"-14 UNF HSS Bottoming Tap, Tap America SKU 31149 $59.38
- Approved Vendor 7/8"-14 UNF HSS Left 4 Flute Bottoming Tap SKU 31548 $53.37
- Approved Vendor 7/8"-14 UNF HSS Left 4 Flute Plug Tap SKU 31540 $53.37
- Approved Vendor 7/8"-14 UNF HSS Left 4 Flute Taper Tap SKU 31545 $53.37
- Approved Vendor 7/8"-14 UNF HSS Plug Tap SKU 31130 $38.72
- 7/8"-14 UNF HSS Plug Tap, Tap America SKU 31151 $59.38
- Approved Vendor 7/8"-14 UNF HSS Taper Tap SKU 31133 $38.72
- 7/8"-14 UNF HSS Taper Tap, Tap America SKU 31147 $59.38
- Approved Vendor 7/8"-14 UNF X 2" OD HSS Left Round Adjustable Die SKU 30592 $100.89
- Approved Vendor 7/8"-16 UNS HSS Plug Tap SKU 31263 $45.54
- Approved Vendor 7/8"-16 UNS X 2" OD HSS Round Adjustable Die SKU 30484 $111.15
- Approved Vendor 7/8"-18 UNS HSS Plug Tap SKU 31264 $45.54
- Approved Vendor 7/8"-18 UNS X 2" OD HSS Round Adjustable Die SKU 30486 $111.15
- Approved Vendor 7/8"-20 UNS HSS Plug Tap SKU 31252 $45.54
- Approved Vendor 7/8"-20 UNS X 2" OD HSS Round Adjustable Die SKU 30491 $111.15
- Approved Vendor 7/8"-24 UNS HSS Plug Tap SKU 31260 $45.54
- Approved Vendor 7/8"-24 UNS X 2" OD HSS Round Adjustable Die SKU 30488 $111.15
- Approved Vendor 7/8"-27 UNS HSS Plug Tap SKU 31262 $45.54
- Approved Vendor 7/8"-27 UNS X 2" OD HSS Round Adjustable Die SKU 30490 $111.15
- Approved Vendor 7/8"-28 UNS HSS Plug Tap SKU 31257 $45.54
- Approved Vendor 7/8"-32 UNS HSS Plug Tap SKU 31261 $45.54