Attributes:* Cutting Edge Diameter: 3.7 mm* Shank Diameter: 3.7 mm* Cutting Edge Length: 46mm / 1.81"* Overall Length: 74mm / 2.91"* Material: 4241 High-Speed Steel* Finish: Nitriding black* Cutting Angle: 118 Degrees* Style: Straight ShankWhat Is Included:* 10 Pieces x Drill BitApplications & Features:---Applicable materials: Acrylic, plastic, and wood. soft metals such as copper, aluminum alloys, carbon steel (use with caution for thick plates)---Applications: The 4241 High-Speed Steel (HSS) Twist Drill is a versatile drill bit suitable for machining medium- to low-hardness materials, commonly used in vehicle maintenance for tasks like drilling sheet metal fasteners, replacing bolt holes, installing brackets, and creating wire harness mounts (non-precision applications)--- The 4241 high-speed steel (HSS) offers high hardness, excellent wear resistance, and good toughness.--- Nitriding black finish can enhance the corrosion and wear resistance of twist drills--- The 118° point angle ensures faster feed rate, higher machining efficiency, sharper drill tip, and more precise positioning. Suitable for handheld drills and bench drills in home repairs and light-duty machining.Useful Tips:---The 4241 high-speed steel (HSS) drill bit is designed for low-load machining and should not be used on hardened steels, high-alloy steels, thick stainless steel, or other ultra-hard materials.---Drill Bit Clamping: The drill bit must be securely clamped, but excessive force must be avoided. Ensure the drill bit is perpendicular to the workpiece surface—tilting can cause breakage or hole deviation.---Test Drilling on Scrap Material: Always perform a test drill on scrap material first to verify proper speed and feed rates before machining the actual workpiece.
