Compatible with BMW Piston Ring Filer 66785

1 Part Number: 66785 66786 are the replacing reference part number of the manual piston ring filer, please check before purchasing. 2 Function: To ensure proper piston ring clearance, piston ring filer can be used to file piston rings faster and more accurately. 3 Premium Material: Manual piston ring grinder is made of high quality aluminum alloy, will not rust, waterproof, solid and durable. 4 Easy to Use: Hold the piston ring on the pin and file the ring with a grinding wheel, shaking the handle to make sure the piston ring clearance is correct. 5 Practical Repairing Tool: Manual piston ring filer with 120 grit carbide grinding wheel is perfect for piston repairing.

What's in the box
1 x Piston Ring Filer