Keyless Drill Chuck 2-13mm 1/2-20UNF Mount Heavy Duty Professional Converter
Instantly convert driver to hold non-quick change drill & driver bits.
Keyless chuck finger-tightens for easy bit changes.
Greater clamping force, effectively preventing drill bits loose more
Quick-change SDS shank for electric hammer.
Mount:1/2-20UNF.

Specifications:

vanadium steel and
Shank length: 46mm
for Head diameter: 42mm
Capacity: 2-13mm
Size: 122 42mm centimeter error is within the normal measurement

Package includes:

1 SDS chuck adapter