H4 Hexagon Shank 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm 6 Points Hex Socket 6 in 1

Hex socket:2.5mm 3mm 3.5mm 4mm 4.5mm 5mm. size:28 x 5mm(L*D);Max size:28 x 7mm(L*D)H4 hex shank driver 6 point hex socket a part of nut driver can attached to a handle used for tightening nuts and bolts.Can provide increased strength and avoid the rounding of rusted or damaged fasteners.An useful hand tool for car repairing in daily use.