Makita Impact Black Drive Adaptor 1/4" hex shank with Torsion zone. For Use With Impact Drivers. Black Coating Prevents Rusting. High Durability With Longer Life Than Standard Bits. (1/4" hex to 3/8" Square Drive). Makita Impact Rated Drive Adapter 3/8" in Black. Makita Impact Black bits are designed to withstand high torque when used with Impact Drivers. They are constructed from high strength, heat-treated S2 special steel. The black coating is to prevent rust. With precision-made tips to ensure a perfect hold. Up to 20% more durable than standard bits. Socket Type: Adaptor. Adaptor Size: 1/4"" Hex to 3/8"" Square Drive. Product Range: Makita - Impact Black Adaptors. Country of Origin:China. Magnetic Length 50mm 1/4" hex shank. Pack quantity 1.