WORKPRO PH2 Impact Phillips Screwdriver Bit Sets 20PCS 1/4" Hex-Shank Driver Bit

WORKPRO Impact Bit Sets. Manganese phosphate surface gives them better rust and corrosion protection. 1/4 quick change hex shank gives them high adaptability. Made of premium heat treated S2 alloy steel, CNC Precision machined tip and a hardened core strengthen each bit, reducing fracture risk.