The 45 Piece Hitachi Drive Bit Set contains 32 - 1" Insert Bits, 10 - 2" Power Bits, 2 Nut Drivers, 1 Slide Guide and a durable Storage Case. T-Steel is a higher grade steel developed in response for higher torque ratings and hardness.
CNC machined for exact fit in fastener head
Hot Cold Hardened (HCH) Cryo Tempered
Manufactured using industrial T-Steel
Lasts up to 10X longer than standard bits
Comes with convenient storage case