[Precise Positioning] The drill bush is designed for precise positioning without moving. Easy to change the center drill bit with a wrench, cost-effective for a long time use.
[Widely Application] It's used for the installation of the door hinge, door butt, handles, drawer slides, etc.
[Specific Design] The sawdust will be automatically discharged from the sides of the drill hole, and will not block the drill.
[Material] The drill bit is made of high-speed steel, sharper and more durable, high hardness, wear resistance, good toughness, heat and corrosion.