6Pcs Hex Shank Socket Wrench Drill Bit Set H4 6 Point Hex Nut M25 55mm Tool
H4 hex shank driver 6 point hex socket, a part of nut driver, can attached to a handle, used for tightening nuts and bolts. Hex Shank Size:H4(3/25"). Hex socket:M2.5mm,3mm,3.5mm,4mm,4.5mm,5mm,5.5mm.