Staged pagoda wick, drilling + bore + chamfering + deburring alloy material, durable and accurate drilling, iron cut like mud Spiral groove trepan Widely used triangular stem, suitable for a variety of materials, what can we pierce with? It is used for carbon steel drilling and bore operations, iron plate, aluminum plate, copper plate, plastic plate, etc., multiple application. Easy processing scene It can be used in the processing of the sheet metal, the automotive industry, the aerospace industry and the processing industry of electrical machinery workshops, etc. Autocentrage is easy to locate and the opening design in 118 effectively reduces the slip of the Foret Spring, wear-resistant and without burrs, punching With precision and chip removal more easily Note: 1 Note to rechargeable drill users: 12V rechargeable drills have insufficient torque and are not recommended It is recommended to use rechargeable drills 36V and 48V Note to 2-hand electric drill users: The larger the diameter of the hole, the lower the speed of the electric drill, it is recommended Rotation speed at less than 100pm Type of rod: straight groove with round rod color: silver cooling type (internal cooling / external cooling): external cooling diameter cutting (mm): 48 handle diameter (mm): 13 Useful length (mm): 48 Total length (mm): 72 Material: Fast steel Maximum cut depth: 48 Category: Stage exercise length of the blade: 48 (mm) Total length: 72 (mm) diameter of the stem: 13 (mm) Series: Step Drilling Model: White Diamond Forest 5-35 with Round Round Groove Weight of the Product (KG): 137g Quantity delivered: 1 * PCS