[MATERIAL - CARBIDE STEEL]: Made of carbide and heat-treated. High hardness and heat resistance, the high temperature generated during drilling does not deform, also wear-resistant, can be used for a very long time. High concentricity, so the machining precision is high and the noise is low. [LARGE VERSION - 50MM]: The package includes 50mm. Guided by the circular edge, all holes bend in all directions; ensures a true, precise and clean flat bottom hole with quick waste disposal, ensuring your work with efficiency. [X-WING DESIGN FOR PRECISION]: The head provides visibility and stability during operation. The central groove on each drill ensures precise drilling and prevents it from running and wobbling during operation, creating perfectly round and precise holes with the central groove design. [DRILL HOLES FOR CUTTING]: Suitable for drilling machine, pistol drill, pillar drill, vertical drill, portable electric drill, motorized base drill and movable band magnet drill for mounting doors, drawers; Perforation on wood products, plastic products, wood and plywood. [EASY TO STORE AND CHOOSE]: Each drill comes in its own plastic box and the size has been marked outside the box so you can get the matching drill from the shelf in seconds. Features: Dimensions: 50mm. Material: Titanium alloy. Individual/Set: Individual. Individual/Set: Individual. p> Shank shape: Straight. Tool product type: Power tools Contents: 1 drill with plastic packaging.