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Widia spiral flute tap, black oxide finish, M7x1 thread, 69.1 mm length, 2 flutes

Widia Gtd

Widia Gtd Spiral Flute Tap M7x1 Bottoming 2 Flutes Metric

SKU CH-8NXT-0REAJ

A spiral-flute bottoming tap for M7x1 metric threads, 69.1 mm overall with 17.5 mm thread length, three flutes and high-speed steel black-oxide finish

  • M7x1 metric thread fits precise hole sizes
  • 1 mm overall length reaches deep threads
  • 5 mm thread length cuts full engagement
  • High-speed steel with black oxide resists wear
  • Three flutes clear chips for clean cutting

Widia Gtd M7x1 Spiral Flute Tap

This Widia Gtd spiral flute tap cuts M7x1 metric threads in a single pass. The bottoming chamfer reaches full thread depth near the bottom of blind holes. High-speed steel construction with black oxide finish resists wear during repetitive threading tasks in automotive and general machine shops.

Suited for right-hand blind-hole threading

Machinists creating 6H class fit threads in blind holes will find the 17.5 mm thread length and D5 limit appropriate. Builders needing through-hole taps, left-hand threads or larger flute counts for chip evacuation in deep holes should select a different tool geometry.

M7x1 thread size with 6.00 mm drill requirement

The tap requires a precise 6.00 mm drill size to achieve the 75 percent thread engagement specified for the 6H fit. Using an incorrect drill diameter will produce oversized or undersized threads that fail gauge inspection.

How it compares

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

Price $34.99
Pricier than about 57% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameWIDIA

Questions about this item

What thread standard and class of fit does the M7x1 spiral flute tap follow?

It cuts a metric M7x1 thread to a 6H class of fit with a D5 thread limit.

What shank and drill size are needed to mount and prepare the hole for this tap?

The tap has a 69.1 mm overall length and requires a 6.00 mm drill for 75 percent thread engagement.

How is the bottoming tap installed and what common step is missed?

Run it by hand or with a tapping head using cutting fluid; the step often missed is drilling the 6.00 mm hole to the correct depth before tapping.

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