✅ A standard duty 1/2" keyed steel chuck ✅ 3/8" - 24 UNF Mount ✅ Fits most major tool brands ✅ Plated body provides a rust-resistant finish ✅ Maximum capacity(in): 1/2" ✅ Minimum Capacity(in): 0.06" ✅ Mount: 3/8"-24UNF ✅ Runout(in): 0.013" ✅ Sleeve Diameter (in):1.7"

Superior Electric J3513A. This high quality Keyed Drill Chuck is made of heavy duty steel with Key 3/8" - 24 UNF Mount. It fits almost every brand’s drill motor. Compatibility details are provided below.