Mounting: 1/2-20UNF; Capacity Range: 2-13 mm / 1/16-1/2 inch; Designed for tough jobs

Constructed with metal for superior durability.

Applicable scope: suitable for hammer drills with 1050W power and above. SDS shank for quick change for electric hammers. Used on cordless drills and mains-powered screwdrivers.

Tighten comfortably with one hand thanks to the exclusive single sleeve design. The simple torque stop is easy to handle and apply, resulting in superior clamping. The SDS shank for quick change for powerful hammers allows you to instantly convert an impact driver into a non-quick change drill bit holder. Features: The simple stop bearing allows the torque applied to the handle to be easily translated into greater gripping force. It multiplies the usefulness of cordless impact wrenches and screwdrivers to perform the work of a regular drill. Suitable for impact drills with a power of 1050W and above. Good metal texture, comfortable jacketed surface, with strong grip, easy to hold, which increases the output torque. It can convert a two-hole, two-groove powerful hammer into a three-jaw chuck for a hand drill.