Kennametal 1016589 Tap Collet Double Angle J Series

Product Description

The KENNAMETAL 1016589 is a double angle tap collet in the J collet series, designed to hold 3/8 inch hand taps in compatible tap holders and tapping attachments. With a collet size of 0.381 inches and a square drive size of 0.286 inches, this collet provides secure, repeatable tap retention during threading operations. Total indicator runout (TIR) is rated at 0.001 inches (0.030 mm), supporting accurate tap alignment in ferrous and non-ferrous workpieces. At 0.025 pounds, it is a lightweight precision tooling component suited for machine shops, maintenance environments, and production tapping applications. Licensed machinists and tooling specialists are the primary installers.

This collet is intended for hand tap applications using standard J-series collet-style tap holders. It does not support through-coolant or tension-tap configurations. Typical use cases include manual and CNC tapping operations where a double angle collet interface is required, particularly when holding 3/8 inch hand taps in fixed or floating tap holders on vertical machining centers, drill presses, or tapping arms. It is not designed for pipe taps.

Key Features

• Double angle collet design for secure tap retention and positive drive
• J collet series compatibility for use with matching J-series tap holders
• 0.001 inch TIR rating supports accurate tap alignment and thread quality
• 0.286 inch square drive size fits standard 3/8 inch hand tap shanks
• Lightweight at 0.025 pounds for easy handling and quick collet changes
• No through-coolant or tension-tap features keeps the design simple and durable

Compatibility

Designed for use with J-series double angle tap collet holders accepting a 0.381 inch collet size. Intended for 3/8 inch hand taps with a 0.286 inch square drive. Not compatible with pipe taps or tension-compression tap holders.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the tap holder and spindle are fully de-energized and at rest before inserting or removing the collet. Inspect the collet bore and seating surfaces for chips or debris before seating to avoid runout errors. Follow the tap holder manufacturer torque and clamping guidelines when securing the collet nut.