6pc suction valve lapping grinder tool set with 8mm drill mounted attachment (shank) as well as automatic change in direction lapper grips and turns the valve stem producing a gas tight seal which is up to 60 times faster than your hand operated lapping tools or sticks.
Set includes:

- Valve lapping tool
- Suction cup - 16, 20, 30, 35, 45mm

Specification:

- Drill shank - 8mm
- Speed - 1000/1250RMP
- Overall length - 125mm