Features High Speed Steel Material: Crafted from high speed steel, this drill bit features an incisive and wear-resistant blade, with the whole heat treatment ensuring high hardness and long service life. U-Shaped Design for Efficiency: The U-shaped design of the drill sleeve facilitates convenient drilling and wood chip discharge, ultimately enhancing drilling efficiency. Precision and Speed: Achieve faster and more accurate square holes by using this drill bit on a camphor machine, surpassing the effectiveness of chisels or manual methods. Versatile Professional Drill: Designed for construction, installation, and decoration industries, this professional drill set meets a wide range of needs for square hole drilling. Cost and Time Efficiency: Accelerate construction speed and reduce costs in construction, installation, and decoration industries with this square hole drill bit. Features: 1、Square hole drill is made of high speed steel. The blade is incisive and wear？resistant. The whole heat treatment has high hardness and long service life. 2、U？shaped design of the drill sleeve is convenient for drilling and discharging wood chips to improve the drilling efficiency. 3、Using a square hole drill, mounted on a camphor machine, makes the square hole faster and more accurate than using chisels or other manual methods. 4、Professional drill, suitable for construction, installation, decoration, decoration and other industries, square drill set to meet most needs. 5、Accelerate the construction speed, reduce the construction cost of construction, installation, decoration, decoration and other industries. Specification: Item Type: Square Hole Drill Bit Material: High Speed Steel Uses: Professional Square Drill Bits, Suitable for Drilling and Mortising Grooves in Low-Hardness Materials Such as Density Boards, Pressboards, Plastics, Hardwoods, Etc. in the Process of Construction, Installation and Decoration. Package List: 1 x Square Hole Drill Bit 1 x Plastic Box Note: In normal use, don't try to at one time, but need to press and lift multiple times. This will not only help the drill bit to discharge sawdust, drill a suitable square hole, but also protect the drill bit. Package List 1 x Square Hole Drill Bit 1 x Plastic Box