Product Description: • Model no.: TAC451301.1 • Chuck capacity: 1.5-13mm • Spindle thread: 3/8" - 24 UNF Special highlight: • 100% brand new product • User-friendly & convenient • Easily to install & assemble • Light in weight, portable Features: • Heavy-Duty keyed chuck for drills and rotary hammers. • 1/2"-20 UNF female thread • Metal chuck key x 1 piece • SDS-plus chuck adaptor for rotary hammers