100mm 4inch Square Driver Bit Screwdriver Bits Set Steel 1/4" Shank Magnetic For Poket Hole Jig Screwdriver Bit Set

100mm 4inch Square Driver Bit Screwdriver Bits Set Steel 1/4" Shank Magnetic For Poket Hole Jig screwdriver bit set Features: The screwdriver bits are steel material with heat treatment-. HRC60-62 strong hardness, good toughness- and wear resistance. The screwdriver bits are 100mm/4inch long, suit for poket hole jig woodworking. Magnetic heads can firmly fix screws, protect both screws and bits. Application: 1/4" 6.35mm shank fit for electric screwdrivers, hand screwdrivers, electric drills, air- drills etc Specifications: Name: Square Screwdriver Bits Material: Specification: Surface-treatment: sand blasting Length: 100mm Handle type: 1/4 hexagonal handle Hardness: HRC60-62 Weight: 215g Quantity: 10PCS Package Includes: 1Set Square Screwdriver Bits Note: No retail package. Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you.