3Pcs/Set 1/4" 3/8" 1/2" Hex Shank Bit Adapter 50mm Square Head Impact Drill Adapter Chrome Vanadium Steel Extension Drill Bits

High-concerned chemical : None Material : Chrome-vanadium Steel is_d : No Model Number : -- Type : Hand Tool Parts Origin : Mainland China Use : Home DIY Material: : Chrome Vanadium Steel Treatment: : Sandblasting Color: : Silver Shank: : 1/4''(6.35mm(0.25in)) Total length: : approx. 50mm(1.97in) Including: : 1/4''(6.35mm) 3/8''(9.5mm) 1/2''(12.7mm) Quantity: : 3Pcs/Set