Made of high quality carbide, exquisite workmanship, durable in use Easy to use, rust resistant It is suitable for finishing and semi-finishing of steel and stainless steel Surface finish, good wear resistance and good chemical stability Model: DCMT070204-HM YBC251, Size: 12.7 x 7.3 x 2.5mm Features: Model: DCMT070204-HM YBC251 Material: Carbide Size: 12.7 x 7.3 x 2.5 mm / 0.5 x 0.29 x 0.10 inch (manual measurement, 1-3 mm error) Weight: 23g Color: Gold Quantity: 10pcs Packaging: plastic box (yellow, red, blue random) Package includes: 10pcs CNC carbide drill bits Blade description: D = blade shape, D is a 55 degree diamond C = the cutting angle is 7 degrees (with the cutting angle is a single blade) M = blade tolerance (you can ignore it) T = hole buttonhole symbol (you can ignore it) 07 = the cutting edge is 7mm 02 = the thickness of the blade 04 = 3.97mm HM = groove profile YBC25 = material processing (semi-steel processing)