SK Tools - Set Socket Bit 3/8dr Hex Metric 8pc - 197088 Piece 3 8" Drive Metric Hex Bit Socket Set Through hole design makes it easier to replace worn or broken bits: simply pop the old bit out and insert a new replacement bit New Bit Holder Design is 9 times stronger and helps prevent the bit from slipping out of the socket while working. Socket cold forged with high alloy US steel for maximum strength Bits are manufactured to rigid standards using high strength S2 steel. Set Includes: 3 8" Drive Metric