MUMU Step Cone Drill Bit, 13 Steps, 5 mm – 35 mm, hss 4241, Step Drill Bit, Titanium Hole Cutter, Cone Tip, Hex Tip, hss Tool Set for Steel, Wood,

Advantages: Classic HSS ensures stability and speed. A special titanium coating reduces friction and heat, improving durability and drilling accuracy. The double flute design with depth gauge enables faster, smoother, and more precise cuts. Perfect for drilling steel, brass, plastic, wood, copper, fiberglass, PVC, thin metals, and aluminum. Specification: Type: 5-35 mm (5, 7, 10, 12, 15, 17, 20, 22, 25, 27, 30, 32, 35 mm) Total length: 72 mm. The height of each step is 3 mm. Shank diameter: 12.7 mm, Shank length: 24 mm, Material: HSS-4241, Weight: 30 g, for Package includes: 1 piece, 13 steps, 5 mm - 35 mm, HSS step drill. Tip: The recommended drilling speed is 250 to 400 rpm. It is made of HSS-4241 and cannot be used for stainless steel. It is suitable for workpieces with a hardness below HRC 25° and a plate thickness of less than 5 mm. Water cooling during operation can effectively extend the service life. Note: Remember to protect your hands when using. This product is not intended