Specification Brand : UwinVwin BulletPoint1 : 【Square drill bit adapter】Fit for benchtop drill machine with hand drill clip diameters between 38 and 55mm (1.5 and 2.2 inches). BulletPoint2 : 【Please Note】This adapter is not suitable for lithium battery drills and bench drills without round bore bearings. Suitable for old table drills and household table drills, please pay attention before ordering. BulletPoint3 : 【Material】Square drill bit adapter is made of all-steel castings, which are strong and durable. If stored in a humid environment for a long time, it may cause some surface rust, which can be improved by simply wiping some protective oil. BulletPoint4 : 【Drill bit diameter】1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 1/2 Inch (12.7mm). BulletPoint5 : 【Easy to Drill】The carbide drill bit tipped is sharp and wear-resistant. With high hardness and long service life. The drill sleeve has a U-shaped design to facilitate the discharge of wood chips and improve the drilling efficiency. BulletPoint6 : Package Include: 10x Double Ended Drill CuttingAngleString : 135 degrees ExternallyAssignedProductIdentifier1 : 643845637316 ExternallyAssignedProductIdentifier2 : 0643845637316 FinishType : Uncoated GpsrSafetyAttestation : 1 IncludedComponents : 1 x Drill press adapter, 4 x Square hole drill bits ItemName : UwinVwin Square Hole Drill Bit Adapter with 4pcs Square Hole Drill Bit, Mortising Attachment for Drill Press, Mortise Machine, Power Tool Accessory for Drill Machines ItemPackageDimensions_Height : 21.6916 centimeters ItemPackageDimensions_Length : 11.303 centimeters ItemPackageDimensions_Width : 12.4968 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : wood-drill-bit-sets Manufacturer : UwinVwin Material : Stainless Steel ModelNumber : JTZT-0006 NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 10 PartNumber : JTZT-0006 ProductDescription : U-shaped chip conveyor It is convenient for wood chips to be discharged and improves drilling rate. 4pcs Square Hole Drill Bit Square Hole Drill Size: 6.4mm(1/4"), 8mm(5/16"), 9.5mm(3/8"), 12.7mm(1/2") 1pc Square Hole Drill Bit Adapter Multi-functional, dual-purpose tenon-tenoning bracket. ProductSiteLaunchDate : 2024-01-11T08:10:19.117Z Style : double ended SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Wood SurfaceRecommendation1 : Iron SurfaceRecommendation2 : Wood UnspscCode : 27111700