Description:

[SIZE] - 8mm Pilot 11T 21.5mm gear diameter, fit for 3mm-16mm drill chuck. [PACKAGE CONTENT] - 1 x Drill Chuck Key (Be sure to check pilot diameter and gear diameter before purchase). [CONSTRUCTION] - Made from solid carbon steel and coated with durable plastic. [COMMON USE] - Ideal for drill tightening and loosening, keep your drill bits firmly in place. [GENERAL PURPOSE] - Helps with securing drill bits in hammer drills and is also universal for many other types of drills.