Specification Brand : Homaisson BulletPoint1 : 【Comprehensive Set for Versatile Applications】This 4 PCS set includes square hole drill bits in sizes 1/4 inch, 5/16 inch, 3/8 inch, and 1/2 inch, offering a wide range of options for precise and efficient woodworking tasks. Ideal for creating clean and accurate square holes, this set caters to both professional craftsmen and DIY enthusiasts seeking reliable tools. BulletPoint2 : 【Perfect Fit for Mortising Machines】Specifically designed for use with mortising machines, these square hole drill bits effortlessly drill into wood to create square holes with precision. Please note that if using a drill press, a mortising attachment is required but not included. This ensures smooth and seamless operation, allowing you to achieve professional-grade results. BulletPoint3 : 【High Compatibility and Performance】These drill bits are compatible with mortising attachments featuring a 3/4-inch collar, making them suitable for a variety of woodworking projects. The hollow chisel mortise drill tool set is perfect for cutting square and lock mortises, ensuring versatility and efficiency in your workshop. BulletPoint4 : 【High Carbon Steel Construction】Crafted from high carbon steel, these square hole drill bits boast exceptional hardness and durability, ensuring a long service life. The robust material withstands heavy use and resists wear, providing you with a reliable tool that maintains its sharpness and effectiveness over time. BulletPoint5 : 【Optimal Use with Mortising Machines】Designed exclusively for use with mortising machines or mortisers, these square hole drill bits are not compatible with handheld electric drills or standard drill presses. This specialized requirement ensures the bits perform at their best , delivering clean and precise square holes without compromising the integrity of your woodworking projects. BulletPoint6 : DIMENSIONS: Blade cutting part width - 3/32 Inch (3 mm). Metal thickness - 0.08" (2 mm). Blade length - 3.93" (10 cm). Handle length - 4.72" (12 cm). Weight – 0.15 lbs (70 g). BulletPoint7 : It's a perfect gift for a wood carvers - professionals, beginners and hobbyists. Made in Ukraine by Stryi Co., since 2009. ExternallyAssignedProductIdentifier1 : 0728721079531 ExternallyAssignedProductIdentifier2 : 728721079531 IncludedComponents : Hole Drill Bits ItemName : 4 PCS Square Hole Drill Bits Set, Woodworking Mortising Chisel Set Bits Including 1/4 Inch, 5/16 Inch, 3/8 Inch, and 1/2 Inch, Square Hole Drill Bits for Handicrafts DIY ItemPackageDimensions_Height : 1.18 inches ItemPackageDimensions_Length : 8.66 inches ItemPackageDimensions_Width : 4.33 inches ItemPackageQuantity : 1 ItemTypeKeyword : wood-chisels Manufacturer : Homaisson Material : High stainless steel ModelName : StryiCarvingTools_G93 ModelNumber : Chisel Set 0723 NumberOfItems : 4 PartNumber : Flbirretrsdo50g7vi PowerSourceType : hand_powered ProductDescription : 4Pcs Woodworking Mortising Chisel Set Bit ProductSiteLaunchDate : 2024-07-23T09:53:53.165Z Size : Small Style : Pencil SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Wood UnitCount : 4 UnspscCode : 27112800