Specification Brand : Feya BulletPoint1 : 【Excellent Quality】This square drill is made of high-speed steel, ensuring durability and practicality, as well as high efficiency. The heat-treated sharp cutting edge provides a high hardness and allows for quick, continuous cuts. BulletPoint2 : 【High Quality Design】The drill sleeve design offers effective protection against tearing during initial use. With no shifting, the saw blade is automatically discharged from the top of the hole on both sides, preventing blockages. BulletPoint3 : 【Labor Saving and Accurate】This drill reduces the labor intensity of construction workers, accelerates construction speed, and lowers construction costs for various projects, including construction, installation, renovation, and decoration. BulletPoint4 : 【Wide Range of Uses】Ideal for drilling square holes in wood using a mortiser or mortising attachment. Square hole drill bits are mainly used for woodworking purposes. BulletPoint5 : 【Wide Application】This square hole drill bit is suitable for use on wood, including MDF, plastic, chipboard, channel wood, pine wood, basswood, and more. However, it is not suitable for processing metal, glass, concrete, plasterboard, and similar materials. BulletPoint6 : 【Scientific Match and Various Sizes】Each pack contains 4 pieces with different slot diameters to meet your specific needs. These drills enable you to easily and accurately drill precise holes. Additionally, each drill is individually packaged in a plastic case for convenient storage and maintenance. Color : Blackx4pcs FinishType : Chrome IncludedComponents : Square Hole Mortise Drill Bits Set ItemName : Feya 4PCS Square Hole Mortise Drill Bits Set, Chisel Drill Bits, Woodworking Square Mortising Chisel Hole Saw Drill Bit Set for Carpenter 1/4” 5/16” 3/8” 1/2” ItemTypeKeyword : countersink-bits Manufacturer : Feya Material : High Carbon Steel NumberOfItems : 4 PartNumber : lh0247 ProductDescription : 4PCS Square Hole Mortise Drill Bits Set, Chisel Drill Bits, Woodworking Square Mortising Chisel Hole Saw Drill Bit Set for Carpenter 1/4” 5/16” 3/8” 1/2” ProductSiteLaunchDate : 2024-02-23T01:48:43.539Z Size : 1.5X1.3X1CMx4pcs SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Engineered Wood