Product information : 

Product material: made of high-quality diamond, electroplating process.
Product specification: 3 * 140mm
Application: It is used for processing hard materials, glass products, mold polishing, processing and finishing of jade and ceramic materials.
Tips: When filing, it should be polished clockwise without back and forth friction to avoid excessive wear that affects the emery and reduce its service life.

Size Information:
Size: 3 * 140
Total length: 140 (mm)
Handle diameter: 3 (mm)

Packing list:

File * 10/5pcs