Milwaukee SHOCKWAVE Impact Bit Hex 8 mm, 25 mm, 4932500383

Milwaukee SHOCKWAVE Impact Bit Hex 8 mm, 25 mm, 4932500383

Milwaukee 4932500383 is an impact bit from the SHOCKWAVE Impact Duty range in Hex 8 mm, 25 mm long. The fitting is a 1/4" hex and the pack contains a single bit.

The Hex 8 mm recess

8 mm hex is the large size - for M10 bolts, structural connections and machine components with a socket head. On such bolts a hand key takes time; with an impact driver and this bit the job goes several times faster.

What SHOCK ZONE is

An impact driver does not deliver torque smoothly - it delivers it in blows, hundreds of times a minute. Each blow is an abrupt spike in load, and that is what breaks ordinary bits: the energy reaches the tip and snaps it off.

SHOCK ZONE is a section of the shank with a reduced diameter, designed to twist elastically. It absorbs the blow and returns it like a spring, instead of passing it to the tip. Together with a special heat treatment it gives the bit a property that sounds contradictory for hardened steel: it flexes rather than breaks.

The 25 mm length

25 mm is the short "insert" standard. The bit goes into a magnetic holder or straight into the impact driver's chuck. The advantage of the short length is stability: the shorter the bit, the less runout at the tip and the more accurately it seats in the recess.

Making them last

Most bits do not wear out - they break from bad technique. Three rules cover almost everything: hold the machine square to the screw axis - angled load concentrates in one corner of the tip; release the trigger the moment the head seats - every further blow only fatigues the bit; and never work a chewed-out recess - there the bit spins in the void, heats up and wears out in minutes.

Technical specifications

Questions and Answers