Extended 3 Jaw Chuck Adaptor Kit with Pilot Drill Bit 1/2" BSP

The ultimate solution for core drilling professionals and serious DIY enthusiasts.

Designed to convert large core drills into versatile rotary drilling tools - this adaptor accepts twist bits directly, transforming your drill rig into a multifunctional powerhouse.

Built from premium tool steel with precision threads, it delivers long-lasting performance and dependable strength for the toughest jobs. Includes an A-taper pilot drill bit for easy, accurate hole starts.

Why you'll love it:

Core drill rig owners can now use standard twist bits with no extra equipment needed

Extended length enhances reach in deep or hard-to-access drilling settings

Solid metal construction withstands high torque and heavy use

Convenient, all-in-one kit - no need to source parts separately

Features

Includes pilot drill bit: A-taper format ensures clean starts and reduced walking

Precision fit: Machined steel construction resists wear and maintains concentricity under torque

Extended shaft: Extra length for deep drilling or stand-mounted setups.

See all core drilling adapters, our diamond core drills, and the core bits that run alongside twist drilling.