Drive Bits PN# 12251 $8.20 / PK NEW Drive Bits PN# 12251 3/16 X 1" Hex Tamper Proof Insert Bit Bits Used to Drive Hex Tamper Proof screws Quantity per PK 10 PK Weight 0.11 lb Length Drive Bit 1" Hex Tamper Hex Tamper NEW $8.20 / PK Quantity