Techniks 31/12-4190C Tap Collet Ansi 2 0.59 Inch

Product Description

The TECHNIKS 31/12-4190C is an ANSI Series 2 tap collet designed to hold 3/4 inch hand taps in rigid or floating tap holders used on CNC machining centers and drill/tap units. Built to ANSI standards with a decimal collet size of 0.59 inches and a square drive size of 0.442 inches, this collet supports coolant-through delivery, channeling cutting fluid directly to the tap for improved chip evacuation and tool life. Tension-compression operation is not applicable to this collet. Machining shops and tool-room technicians are the primary installers and users of this component.

This tap collet is suited for ferrous and non-ferrous machining applications where a 3/4 inch hand tap must be held securely in an ANSI 2 collet-style tap holder. The coolant-through feature makes it well matched to deep-hole tapping operations or high-production runs where heat and chip buildup at the cutting zone are concerns. It is packaged and sold individually.

Key Features

• ANSI Series 2 collet standard for compatibility with ANSI 2 tap holder bodies
• Collet size of 0.59 inches to accept 3/4 inch hand taps
• Square drive size of 0.442 inches for positive tap engagement
• Coolant-through design directs fluid to the cutting zone
• Hand tap configuration - not for pipe taps
• Lightweight at 0.1 pounds for easy handling and minimal holder imbalance

Compatibility

Designed for use with ANSI Series 2 tap holder bodies that accept 0.59 inch collets and support coolant-through delivery for 3/4 inch hand taps.

Installation Notes

Installation is performed by machining technicians familiar with tap holder systems. Power down and de-energize the machine spindle completely before changing collets or taps. Ensure the collet bore and tap shank are clean and free of chips or coolant deposits before seating the collet in the holder body. Follow machine tool manufacturer torque guidelines for the retention nut - do not over-torque, as this can distort the collet bore.