1/2 To 3/8 Impact Adapter, Keyless Drill Chuck 1/2-20unf Mount 1.5-13mm Self-Tighten Drill Chuck Quick Change Impact(Black). It is a practical drill chuck tool that can improve work efficiency. 【Drill Chuck For Impact Driver】This 1/2-20UNF, 1.5-13mm self-tightening keyless drill chuck.
