Socket Screwdriver Bit Sets with Chrome Vanadium Steel, Socket and Socket Set- PNDB1A

PROFESSION AND DURABILITY - Made from forged and hard chrome vanadium steel, the hardness can reach 56HRC; With the corrosion resistant sandblasted finish to make it more durable.
 MULTI-PURPOSE - Universal 1/4'' hex shanks fit quick change and lock firmly into standard chucks, suitable for all drills, screwdrivers and screw guns.
 FULL RANGE OF SIZES - 20 PCS Power Nut Driver Bits Inch: 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1 /2 in; 10-PCS Power Nut Driver Bits Metric: 4mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm.
 CONVENIENT STORAGE - Comes with a work belt storage clip, easier to carry and store.
 WIDE APPLICATION - It is widely used in home DIY, auto parts, woodworking, professional machine repair, etc. Features: Materials: Metal Type of packaging: Piece Ratchet Size: 1/4