Specification Brand : Dioche BulletPoint1 : 【Practical Set】 - A smart investment, this countersink bit includes 5 bits for drill pilot holes in sizes #5, #6, #8, #10, and #12, along with a handy hex wrench. Efficiently designed for complicated drilling tasks. BulletPoint2 : 【Excellent Material】 - Skillfully crafted from countersink drill bit, our 6-piece set exhibits excellent hardness at HRC 60, promising heavy-duty performance and impressive longevity. BulletPoint3 : Compatible】 - Our countersink drill bit set features a 1/4 hex shank, allowing for compatibility. Operating this drill set is convenient and efficient, making your hardware tasks smooth and swift. BulletPoint4 : 【Countersink Function】 - Integrated with a profound HSS steel counter sleeve, the set offers countersinks and counter bores to pilot holes. It enables you to pre-drill and countersink screws flush with the material or deep hole counter-boring for driving screw heads below the BulletPoint5 : 【Adjustable Parameters】 - Adaptable and flexible, this drill set lets you adjust the drilling length for different screw lengths simply by loosening and tightening the setscrew. It is a testament to intuitive design and user-friendly adjustability. ExternallyAssignedProductIdentifier : 5055441451565 FinishType : Uncoated GpsrSafetyAttestation : 1 IncludedComponents : 5pcs* countersink drill bit(5mm,6mm,8mm,10mm,12mm); 1 X Wrench ItemName : Countersink Bit, 5 Pcs Steel Countersink Drill Bit Countersink Drill Bit Set with Hex Wrench for Woodworking ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : countersink-bits Manufacturer : Dioche Material : High Speed Steel ModelNumber : Diocheqosg65urk8 NumberOfFlutes : 2 NumberOfItems : 5 NumberOfPieces : 5 PackageLevel : unit PartNumber : Diocheqosg65urk8 ProductDescription : Description: Our versatile 6-piece Drill Set is a brilliant solution for all your hardware tasks. With its 5 different sized bits and a hex wrench, it is designed to cater to a wide range of requirements. The drill bits are manufactured from High-Speed Steel (HSS4241) and Carbon Steel, offering high hardness and superior durability. The set features a 1/4(6.35mm) hex shank for easy compatibility and swift changes, promoting efficient operate. The built-in HSS steel counter sleeve countersinks, and counter bores pilot holes, allowing you to drill and countersink for wood screws without the need to change bits continually. In addition, the set enables you to adjust the drilling length for variable screw lengths, enhancing its usability and adaptability. The drill set is effectively a comprehensive solution for your drilling jobs, making it a must-have for your toolset.