Specification Brand : Pilipane BulletPoint1 : [EFFICIENT CHIP REMOVAL] – Featuring U shaped chip grooves , these drill bits facilitate the swift discharge of wood chips , significantly enhancing drilling efficiency . Experience and accurate drilling every time . BulletPoint2 : [PREMIUM MATERIAL & DURABILITY] – Crafted from high quality bearing steel , these rectangular hole drill bits undergo overall heat care , ensuring exceptional hardness and a prolonged service life , making them ideal for professional woodworking projects . BulletPoint3 : [STABILITY & SAFETY] – The force is distributed in a plane , effectively protecting against bursts during manipulation . The universal shank design , coupled with a round tail , ensures stable clamping , providing a secure and safe woodworking experience . BulletPoint4 : [VERSATILE APPLICATIONS] – Suitable for various wood products , including density board , medium fiberboard , particle board , and wood . Ideal for use with rectangular hole drills and rectangular tenon machines , offering flexibility in woodworking projects . BulletPoint5 : [COMPLETE SET & EASY USAGE] – This set includes four different sizes (1/4 , 5/16 , 3/8 , 1/2) of rectangular hole drill bits , providing versatility for different woodworking tasks . Easy to use and suitable for professionals and personally constructed enthusiasts alike . Note : Not suitable for use on metal , concrete , glass , and gypsum board . Color : Zt39-black ExternallyAssignedProductIdentifier : 9474488499440 ExternallyAssignedProductIdentifier1 : 4014586331058 ExternallyAssignedProductIdentifier2 : 04014586331058 FinishType : Brass GpsrSafetyAttestation : 1 IncludedComponents : inc ItemName : for Long-Lasting Wood Mortising Chisel Set for Woodworking, 4pcs Premium Rectangular Hole Drill Bits, Versatile 1/4, 5/16, 3/8, 1/2 Sizes, U Shaped Chip Grooves ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 8 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : wood-drill-bit-sets Manufacturer : Pilipane Material : Material ModelName : AYNEFY50vqm2aibx ModelNumber : AYNEFYt9kqnbv51f NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : Pilipaneurc31dn478 PowerSourceType : Powersource ProductDescription : Feature: [PREMIUM MATERIAL & DURABILITY] – Crafted from high-quality bearing steel, these square hole drill bits undergo overall heat treatment, ensuring exceptional hardness and a prolonged service life, making them ideal for professional woodworking projects. [EFFICIENT CHIP REMOVAL] – Featuring U-shaped chip grooves, these drill bits facilitate the swift discharge of wood chips, significantly enhancing drilling efficiency. Experience and precise drilling every time.