Dremel 9931 Tungsten Carbide Structured Tooth Cutter 6.4mm Pack of 1

9910 Spear Tip Shank diameter: 3.2 mm Working diameter: 3.2 mm Accessory length: 39 mm Width: 3 mm Length: 3 mm Height: 39 mm Maximum RPM: 30,000 1/min 9911 Egg Tip Shank diameter: 3.2 mm Working diameter: 3.2 mm Accessory length: 39 mm Width: 3 mm Length: 30 mm Height: 39 mm Maximum RPM: 30,000 1/min 9931 Spear Tip Shank diamete... morer: 3.2 mm Working diameter: 6.4 mm Accessory length: 45 mm Width: 4 mm Length: 4 mm Height: 45 mm Maximum RPM: 35,000 1/min

Fast cutting sharp teeth for greater material removal. Use on fiberglass,wood, plastic, epoxy, rubber, laminates, particle board, soft metals, ceramic tile.Technical specifications:Shank diameter: 3,2 mmWorking diameter: 6,4 mmMaximum RPM: 35.000 1/min