Specification Brand : Jwthee BulletPoint1 : 【High Speed Steel Material】The drill bit is made of high speed steel, the overall heat treatment bring high hardness and long service life.Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination BulletPoint2 : 【Standard Flute Designe】 The Mortiser Drill Bit standard flute is designed to facilitate the removal of the wood chip and improve the efficiency of drilling BulletPoint3 : 【Efficient】 Square Hole Drill Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation,decoration industries BulletPoint4 : 【Well-Manufactured】Square Hole Drill Exquisite blade grinding process, edge is sharper .Size(Optional): 10mm/16mm,Length: 203mm(10mm diameter); 208mm(16mm diameter) BulletPoint5 : 【Note】 Square hole drill can not be used on an electric drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use.The drill tail adopts a circular design, which makes the clamping more stable. Color : One Color ExternallyAssignedProductIdentifier : 4305625914708 ItemName : Square Hole Drill,1pc 10mm/16mm Square Hole Drill High Speed Steel Mortiser Drill Bit DIY Woodworking Tools for Woodworking Aspects (10mm) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : brad-point-bits Manufacturer : Jwthee ModelNumber : QIHCMLAJ NumberOfItems : 1 NumberOfPieces : 1 PartNumber : Jwthee25frbkga9m-01 ProductDescription : Descriptions:This square hole drill can not be used on an electric drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use.The standard flute is designed to facilitate the removal of the wood chip and improve the efficiency of drilling. Exquisite blade grinding process, edge is sharper . Features:Square hole drill can not be used on an electric drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use.Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination.Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation,decoration industries.Exquisite blade grinding process, edge is sharper . The standard flute is designed to facilitate the removal of the wood chip and improve the efficiency of drilling. Square hole drill is mainly used for woodworking aspects. Specifications:Material: high speed steelColor: as picture shows Size(Optional): 10mm/16mm Length: 203mm(10mm diameter); 208mm(16mm diameter)Weight:166g Package included:1 x Square hole drill