Neiko Pro Heavy Duty 26-Piece S2 Spline Ribe Impact Power Bit Set Professional Quality Heavy Duty S2 Steel Bits 10mm Hex Shank 26pc Set Includes: 30mm Length Bits: RM4, RM5, RM6, RM7, RM8, RM9, RM10, RM11, RM12, RM13, RM14, RM16 75mm Length Bits: RM4, RM5, RM6, RM7, RM8, RM9, RM10, RM11, RM12, RM13, RM14, RM16 1/2" Drive x 10 mm Hex Socket 3/8" Drive x 10 mm Hex Socket Blow Mold Case Storage