HIGH IMPACT PLASTIC HANDLES. HEAT TREATED CARBON STEEL BLADES. THRU-TANG BLADES WITH HEX DRIVE. CONTAINS 6 POZI SIZES: NO 2 X 100 HEX 13MM, NO 2 X 38 HEX 13MM, NO 3 X 150 HEX 14MM, NO 4 X 200 HEX 16MM, NO 1 X 75 HEX 11MM, NO 0 X 75MM AND 6 SLOTTED SIZES: 6 X 100 HEX 13MM, 6 X 38 HEX 13MM, 8 X 150 HEX 14MM, 9.5 X 200 HEX 16MM, 5 X 75 HEX 11MM, 3.2 X 75MM.