The deepening sleeve is non-magnetic, a metric 5.5mm sleeve, which can be used for disassembly and assembly of metric M3 nuts.

Product Features: Made of chrome vanadium steel, overall quenched, high hardness, chrome vanadium steel rod, excellent toughness and hardness. The surface is coated with sand but chromium, which has good anti-rust performance! Non-slip rubber handle, comfortable to touch!

* The ultra-thin wall sleeve adopts advanced friction welding technology, which is super durable.

* Ultra-thin walled sleeve can be used in narrow spaces, and the extended sleeve head can be screwed with screws of different lengths.

* The front end of the sleeve is twisted and then cut, one is worth trree.

* Ultra-thin wall precision sleeve screwdriver, two-color soft handle, suitable for electronic and computer maintenance.