RUKO HSS Step Drill Bit, CBN Ground with 3 Cutting Edges, Bright Finish, 4.0 20.0 mm Diameter, Size 1, 75.0 Length, R101351

Ruko Hss N1 9 Step Drill Bit 4-20 Mm. RUKO HSS N1 9 Step Drill Bit 4-20 mm | Precision Metal DrillingAchieve unparalleled precision and efficiency in your metalworking projects with the RUKO HSS N1 9 Step Drill Bit. Engineered for professionals and discerning craftspeople, this individual drill bit is the ultimate solution for drilling multiple hole sizes in metal with a single, high-performance tool. Designed as a premium electric tool accessory, it consolidates your toolkit by replacing nine separate drill bits, allowing you to seamlessly create clean, burr-free holes from 4 mm to 20 mm in diameter.Experience a new standard of smooth operation. The deep-ground flutes of step drills with 3 cutting edges guarantee absolutely chatter-free working. This innovative design significantly reduces vibration and ensures a flawless finish on every hole. The reduced load on the cutting edges allows for a higher feed rate, which is especially beneficial when working with soft materials like non-ferrous metals, enabling you to complete jobs faster without sacrificing quality. Furthermore, the cone-shaped profile makes it easier to withdraw the tool from the material, preventing snags and improving your overall workflow.Crafted from high-speed steel (HSS), this step drill bit is built for durability and long-lasting sharpness. Its secure, non-slip grip is assured by the 3-way clamping surface on the shank, which prevents the bit from spinning in the chuck and ensures maximum torque transfer from your drill. This feature is critical for maintaining control and achieving accurate results, particularly when drilling into tough sheet metal. Whether you are in electrical installation, plumbing, automotive repair, or general fabrication, this 20 mm step drill is an indispensable tool for creating perfectly round, stepped holes effortlessly. Upgrade your drilling capabilities with this masterfully designed bit that combines versatility, speed, and superior finishing.Specifications:- Ø: 4.0-20.0 mm- Total length L1: 75.0 mm- Shank Ø: 8.0 mm- Size no.: 1- Steps: 9- Material: HSS- Surface: bright- Cutting direction: right hand cut- Shank: 3-way clamping surface- Point angle: 118°- Point cut: work´s specification- Step angle: 90°- Tolerance: work´s specification. tradeinn Bricoinn

Shank Diameter : 8.0 mm Cutting direction: Right hand cut Point angle: 118 degree Step angle: 90 degree Tolerance: Work's Specification