1. HSS 4341 material with heat treatment HRC 65-65.5

2. Size: From 12mm to 100mm with height 14.1±0.1mm (Teeth height: 3.0±0.1mm

3. Can drill through Stainless Steel sheet, Iron sheet, Aluminium sheet and other metal sheets with thickness 2.0 mm or less

4. Fits for cutting holes in pipes also.

5. Plastic box with stickers packing