Milwaukee SHOCKWAVE Impact Socket, 7 mm, Deep, 4932480281

Milwaukee SHOCKWAVE Impact Socket, 7 mm, 4932480281

Milwaukee 4932480281 is a 7 mm impact socket from the SHOCKWAVE Impact Duty range. It is a deep socket with a black phosphate body and a colour identification ring.

Why an impact socket rather than a chrome one

The difference is not cosmetic and it matters for safety. Chrome sockets for hand use are made of hard but brittle steel - under the hammering of an impact wrench they do not deform, they crack and throw fragments. Impact sockets use a tougher steel that absorbs the pulse by deforming. Using a chrome socket on an impact tool is a prohibited practice, not merely a bad idea.

The deep design

A deep socket reaches a nut on a long stud - the typical case on scaffold, steel structures, machine bases and anchor plates. With a short socket the thread projecting above the nut simply stops it seating.

Black phosphate and the ring

Phosphate finish is matt and does not flake the way chrome does - on an impact socket that is functional, because flaked chrome is both sharp and dangerous. The colour ring at the base is there to find the size quickly in a case of twenty near-identical sockets - a detail that saves minutes on every job.

The 7 mm size

7 mm is the small size - for hex-head sheet metal screws, self-drilling screws, clips and small ironmongery. Those are exactly the fixings driven in runs of dozens, which is why an impact driver is used rather than a spanner.

When 7 mm is the one you need

Seven millimetres is the hex head on the self-drilling screws that hold drywall track, guttering and cladding. It is also the size that goes missing from a set first - it works harder than all the rest together, which is why it is bought singly rather than waiting to replace a whole set.

Technical specifications

Questions and Answers