(10) Extra Long Triple Square Spline Bit Sockets: M4 1/4 Drive (ATD-243); M5 1/4 Drive (ATD-244); M6 1/4 Drive (ATD-245); M8 3/8 Drive (ATD-246); M9 3/8 Drive (ATD-247); M10 3/8 Drive (ATD-248); M12 3/8 Drive (ATD-249);M14 3/8 Drive Tamperproof (ATD-252); M16 1/2 Drive Tamperproof (ATD-253); M18 1/2 Drive Tamperproof (ATD-254);Extra long 4-1/2 shank;Bits are made from S2 steel to meet or exceed torque specifications;Sockets are made from heat treated chrome vanadium steel for strength and durability

• ATD Tools 13781 10-Piece Extra Long Triple Square Spline Bit Socket Set

ATD Tools 13781 10-Piece Extra Long Triple Square Spline Bit Socket SetATD Tools