Description: 【Durable Material】The Crooked Tip Eccentric Drill Bit is made of alloy steel material, which is high in hardness, sharp, wear resistant and durable, and has a long service life. 【Eccentric Design】The Brick Drill bit adopts an eccentric design, making it easier to position more accurately, without slipping, and drilling more efficiently. 【Application Scope】Drill bit is suitable for dry drilling of ceramic tiles, aluminum alloys, foam bricks, wood, concrete, ceramics and other materials. For granite, marble, glass and other materials, it is necessary to add water while drilling to protect the drill bit. 【Compatibility】Cement Drill Bit is suitable for cordless drills, hand drills, and bench drills. 【Easy to Use】Alloy steel drill bit, fast chip removal, with anti slip hexagonal handle Specification: Material: alloy steel Size Chart: Total length: 10.5cm/4.13inch Shank diameter: 6.35mm/0.25inch Package Includes: 1x Crooked Tip Eccentric Drill Bit(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.