Features:- Diamond file almost can file anything can be frustrated move any tool plate, even hardness 69 mysterious high speed steel.- It rasp knife along edge direction can file a line of edge neat.- Metal body, nonslip rubber grips increase control and accuracy.- 10 pcs diamond file set includes circular / semi-circular / triangular / knife edge / square / elliptical and more.- Professional tool for polishing saddle, nut and frets. Easiest and safest way to polish and clean guitar frets without aggressive treatment.- Widely used for shaping soft metal, wood, plastic, and guitar(guitar nut, saddles, pickguard, fret and more).Model Name: M01487Material: Sound MetalColor: As Picture ShowsSize:- Length: About 140 MMD - Diameter: About 3 MMApplication: Guitar, Violin, Guzheng, etcPacking: OPP BagPackage Weight : 85 G / 3.00 OuncesPackage Dimensions (L*W*H) : 150*20*10 MM / 5.91*0.79*0.39 InchesPackage Include:10 x Diamond Files1 x Storage Bag