Techniks 31/12-4095 Tap Collet Ansi 2 0.381 Inch

Product Description

The TECHNIKS 31/12-4095 is an ANSI Series 2 tap collet designed to hold hand taps securely during tapping operations on CNC machining centers and rigid tapping setups. With a collet bore of 0.381 inches and a square drive size of 0.286 inches, this collet provides a positive grip on 3/8 inch hand taps. It is a precision toolholding component used by machinists and tool room technicians in production and job-shop environments. The collet does not include through-coolant capability and is not configured for tension-compression tap holders.

This collet is suited for rigid tapping applications where a direct, non-floating tap drive is required. It fits standard ANSI 2 collet-style tap holders and is appropriate for use with 3/8 inch hand taps in ferrous and non-ferrous materials. Typical installations include vertical machining centers, drill presses equipped with tapping attachments, and manual tapping fixtures in light manufacturing and maintenance environments.

Key Features

• ANSI Series 2 collet design for compatibility with ANSI 2 tap holder bodies
• 0.381 inch bore sized for 3/8 inch hand taps
• 0.286 inch square drive size for positive torque transmission
• Hand tap configuration - not designed for tension-compression floating holders
• No through-coolant passage - suited for dry or flood-coolant external applications
• Lightweight construction at 0.1 pounds

Compatibility

Designed for use with ANSI Series 2 tap collet holders accepting a 0.381 inch bore collet for 3/8 inch hand taps.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tapping attachment is de-energized before inserting or removing the collet. Verify that the tap shank diameter and square size match the collet bore and drive dimensions before tightening the collet nut. Inspect the collet seating surface for debris or damage prior to each use to maintain concentricity and prevent tap breakage.