Specification Material High Speed SteelDiameter of the Saw Tooth Part 5 16 8mm 3 8 9 5mm Length app 77mm 3 03inQuantity 1pc Features Cast iron and other difficult to process metal materials With cost effective and practical Provides better panel separations than a panel cutter High strength and hardness Durable in use Usage used with iron cast iron alloy steel carbon steel die steel Rotary Spot Drill only other accessories demo in the picture is not included Note No retail package Please allow 0 1cm error due to manual measurement pls make sure you do not mind before you bid Due to the difference between different monitors the picture may not reflect the actual color of the item Thank you Package includes 1 x Rotary Spot Drill More Details