Maerial: Tungsen seelnPacking size: 9.8*6.5cmnnFeaures:

n1. 100% brand new and high qualiy.n2. I can process cas iron, cas seel, carbon seel, alloy seel, sainless seel, copper, aluminum and oher meals, as well as marble, jade, bones and oher non-meals. Processing hardness is as high as HRAu226585.n3. The handle is basically used insead of he small grinding wheel, and here is no dus polluion.n4. High producion efficiency. The processing efficiency is several imes higher han ha of manual files, and nearly en imes higher han ha of grinding wheels wih small handles.n5. Good processing qualiy and high finish. I can be processed ino a variey of high-precision mold caviies.n6. Long service life and durabiliy en imes higher han high-speed seel ools, and 200 imes higher han small grinding wheels.