6Pcs Hss Countersink Boring Drill Bit Set for Wood Metal Quick Change Drill Bit Tool + 1/4" Hex Drill Chuck 6 8 9 12 16 19 mm

6Pcs Hss Countersink Boring Drill Bit Set for Wood Metal Quick Change Drill Bit Tool + 1/4" Hex Drill Chuck 6 8 9 12 16 19 mmMaterial: High speed steelSpecification: 6mm, 8mm, 10mm, 12mm, 16mm, 19mm6mm: shank diameter 6mm, head 6mm, for 1-3mm Aperture chamfering;8mm: shank diameter 6mm, head 10mm, for 2-4mm aperture chamfering;10mm: shank diameter 6mm, head 10mm, for 2-5mm aperture chamfering;12mm: shank diameter 6mm, head 12mm, for 4-8mm aperture chamfering;16mm: shank diameter 6mm, head 16mm, for 7-12mm aperture chamfering;19mm: shank diameter 6mm, head 19mm, for 8-13mm aperture chamfering;Type : Core Drill BitUse : Wood Drilling

• Multi blade design: equipped with a five blade structure, it can remove materials at a faster speed and effectively reduce processing time.
• Wide applicability: Suitable for various materials such as metal, wood, etc.
• Standard specifications: With common specifications and sizes, it can adapt to most conventional tools such as electric drills and drilling machines.
• Surface treatment: The surface is processed to enhance the wear resistance and corrosion resistance of the drill bit, making it less prone to rust and damage, and extending its service life.
• Package selection: Some products are sold in package form, to meet the needs of users for different chamfering sizes in different projects.