Kennametal 1016530 Tap Collet Series K 0.318 Inches

Product Description

The KENNAMETAL 1016530 is a Double Angle tap collet in Series K, designed to hold hand taps securely in compatible tap holders and tapping heads. With a collet size of 0.318 inches and a square drive size of 0.238 inches, this collet is sized for 5/16-inch hand taps. It delivers a Total Indicator Runout (TIR) of 0.001 inches, supporting accurate tap alignment and reducing the risk of tap breakage or thread quality issues. Machinists and toolroom technicians working on CNC machining centers, drill presses, or manual tapping setups will find this collet suited to precision tapping operations in production and job-shop environments.

This collet is intended for hand tap applications where consistent grip and low runout are required. The Double Angle design provides positive retention of the tap shank, making it appropriate for ferrous and non-ferrous materials across general metalworking, tool and die, and maintenance machining applications. It does not support through-coolant delivery or tension-compression tapping, making it best suited for rigid tapping setups where controlled axial feed is maintained by the machine or operator.

Key Features

• Double Angle collet design for positive tap retention
• Series K collet for use in K-series compatible tap holders
• 0.318-inch collet bore accommodates 5/16-inch hand taps
• 0.238-inch square drive size matches standard hand tap shank geometry
• TIR of 0.001 inches supports accurate tap alignment
• Hand tap configuration — not rated for tension-compression or through-coolant use

Compatibility

Designed for use with K-series tap collet holders that accept Double Angle tap collets. Sized for 5/16-inch hand taps with a 0.238-inch square shank. Confirm holder series and collet seat geometry before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with tap holder systems. Ensure the machine spindle is fully stopped and locked out before installing or removing the collet. Inspect the collet bore and holder seat for chips, wear, or damage before seating the collet. Do not exceed the tap size rating for this collet, as overloading the bore can cause collet deformation or tap breakage.