IRWIN® TORX Insert Bits are manufactured from industrial-grade S2 steel for long life and durability. Engineered for use in hand-driving applications or with power tools when used with the IRWIN® insert bit holder.Pack of 10 IRWIN® TORX Insert Bits TX30 25mmAdditional Information:• Head Type: Torx• Pack Qty.: 10• Size: TX30• Length (mm): 25