8mm Hole Drill Hole Reaming Auger Eyes Mortising Chisel DIY Woodworking Tool

Made of premium quality high speed steel with high hardness and durability -rust. These drill hole bits are suitable for construction installation renovation decoration industry etc. Features: Made of premium quality high speed steel with high hardness and durability -rust. Crushing round bits and outer wall broken slag dust can be discharged from the tube. Exquisite blade grinding process edge is shar-per and more sturdy. Reduce labor intensity of construction workers and speed up the construction. Drilling holes in wood with a mortising machine or a mortising attachment. Suitable for construction installation renovation decoration industry etc. Specifications: Clamping cylindrical diameter: 19mm Type: 9.5mm(3/8 ) 8mm(5/16 ) 12.7mm(1/2 ) 11mm(7/16 ) (optional) Drill core: 9.5mm(3/8 ) 8mm(5/16 ) 12.7mm(1/2 ) 11mm(7/16 ) (optional) Package size: 230 * 35 * 35mm Package weight: about 220g Note: 1. Please allow 1-3mm differs due to manual measurement. 2. Due to the different display and different light the picture may not reflect the actual color of the item. Thanks for your understanding. 3. hole drill can not be used on an electric drill drill holes need to fit a hole drill drilling (mortise and tenon machine) to use. 4. In case drill bits become overheated and get burned up due to fast rotary friction suggest use some cutting fluid to keep cold during usage. Packing List: 1 * Hole Drill