We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Widia Gtd spiral flute tap #6-40 UNJF bottoming 2 flutes high speed steel black oxide finish

Widia Gtd

Widia Gtd VTSFT-TC5137 Spiral Flute Tap #6-40 UNJF Bottoming 2 Flutes pneumatic accessory

SKU CH-VNGW-BAY4A

Spiral flute tap cuts #6-40 UNJF threads in blind holes using two flutes and H2 limits for 3B fit

  • Precise threading with #6-40 UNJF spiral flute design
  • Clean bottoming cuts from 2-flute high-speed steel construction
  • Accurate hole preparation using 75 percent thread drill size #33
  • Reliable right-hand thread direction for standard applications
  • Durable black oxide finish resists wear during tapping

Widia Gtd VTSFT-TC5137 Spiral Flute Tap

This Widia Gtd spiral flute tap cuts internal threads in a #6-40 UNJF size. It features a bottoming chamfer and two flutes made from high-speed steel with a black oxide finish. The tool has an overall length of two inches and a thread length of three-eighths of an inch. It is designed for right-hand thread direction.

Suited for precision threading tasks requiring

Machinists creating unified fine threads in through-holes or blind holes will find this tap suitable. The H2 thread limit and seventy-five percent thread drill size number thirty-three provide specific tolerance control. Builders needing a different thread size, pitch, or flute count should look at alternative tooling options.

Handles #6-40 UNJF threads

The tap comfortably produces threads up to three-eighths of an inch deep in compatible materials. Its high-speed steel construction supports standard tapping operations. The two-flute design limits chip evacuation capacity in deeper or high-volume production runs where a different geometry would be required.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameWIDIA

Questions about this item

What drill size must I already have to prepare the hole for this #6-40 UNJF tap?

Use a #33 drill to create the 75 percent thread hole before tapping with this tool.

Will this H2 limit, 3B class tap cut correctly in a hole drilled for an older H3 tap?

The H2 limit is tighter than H3, so threads cut in an H3-sized hole may be loose and not meet 3B fit.

How can I confirm the tap is producing the right thread after setup?

Check the finished thread with a 3B class #6-40 UNJF go/no-go gauge to verify fit and pitch.

More in Bits, Hole Saws & Accessory Kits

Similar items