This T-Handle Chuck Key has a pilot shank of 15/64" (5.9mm). It is small and light weight, pilot shank of 15/64" (5.9mm) is suitable for many brands of electric drill chucks. This is a high quality and cost effective product that will be just perfect for you. Chuck Key Fits 1/2" Chuck.

• This is a well machined 15/64" (5.9mm) pilot shank chuck key
• This chuck key will work with many chucks including Bosch, DeWalt and Makita
• If you're looking for a quality cost-effective chuck key, a spare, or to replace that old beat up key, this new drill chuck key will work nicely

This part is compatible with:

• J3513B
• J3713A
• J3513A

• D1: 17.4mm (11/16")
• D3: 5.9mm (15/64")
• L1: 80mm (3.1")