You can use the PRO Impact cap to tighten hex screws, bolts and nuts with the square-drive socket spanner. We designed it to help with screw work in factory plants or other types of heavy industrial work.
We made the PRO Impact cap from heat-treated CRMO (chrome-molybdenum) steel and designed it with thick walls to ensure it can withstand high torques. We added a black phosphate coating to protect it from rust and corrosion. The caps are durably marked and colour-coded so you can immediately see which one you need. They feature a groove and through-hole to attach them to the impact spanner using our pin and washer when you need an extra firm grip.