Hex Shank Screwdriver Quick Release Extension Holder Bit Set 3Pcs 3/4 Masonry Drill Bit 9/64 Drill Bit Hex Radial Disc 3/32 Hammer Set Mechanic Cobalt Drill Bit Set Hex 1/4 End Mill for

Suitable for drill screwdriver batch head and other to transfer Hex Shank: Approx. 1/4 (6.35mm) 1 x 60 mm/ 2.36 inch Extension Drill Bit Holder 1 x 100 mm/ 3.94 inch Extension Drill Bit Holder Color: As picture shows 1 x 150 mm/ 5.91 inch Extension Drill Bit Holder Material: Stainless Steel + - Steel Length: Approx. 60mm/2.36 100mm/3.94 150mm/5.91 Can extend all kinds of screwdriver bits screwdriver head conversion uses and high quality Fast fastening; Greatly improve work efficiency Interface has a locking mechanism built-in automatically up batch head Drill Sharpener Gauge