Cutter size: 6-60mm (6,10,15,20,25,30,35,40,45,50,55,60mm) 12mm (handle length) Material: high speed steel Total weight: 650 Suitable for: iron plate, PVC plate, insulation board. etc. Scope of delivery: 1 HSS step drill Description: Description: Cone drill 660 mm - Description: Cutter size: 6-60 mm (6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 mm) 12 mm (handle length). Suitable for: iron plate, PVC plate, insulation board, etc. Type: 6-60 mm cone drill. Material: high speed steel. < p>Total weight: 1000 g.< /p> Contents: 1 HSS step drill.