6.2 mm HSS M35 Cobalt Twist Drill Bit High Speed Steel Set 10 Suitable for Steels, Cast Iron and Other Metals (6.2 mm)

DelitonGude Makes premium quality, professional tools, superior service that wants to make your life more comfortable and better! Specifications: Size: 6.2 mm. Includes: 10 drill bits. Material: 5% cobalt M35 high speed steel. Angle point: 135 degree Shaft type: straight and round shaft. Packaging: plastic box. 1. Made of M35 high speed steel and contains 5% cobalt, which increases wear resistance, durability and extra longer service life. Fully ground spiral groove design clears particles quickly, reduces friction and heat for faster drilling performance. 3.135° quick-cut pilot gap points are self-centring and can penetrate quickly with less pressure. Straight shank prevents walking and makes drilling more precise and faster. Suitable for drill holes such as steel, copper, cast iron, galvanised pipe, aluminium alloy, wood and other softer metals. If you drill stainless steel, please lower the drilling speed. This drill fits the majority of the drill currently on the market and easy storage and DIY. What is M35 cobalt? The addition of 5% cobalt increases the heat and wear resistance of the drill, making it perfect for stainless steel and cast iron. M35 cobalt steel drill bits can penetrate a 5 mm thick 304 stainless steel plate in a few seconds. br>Instuctions for use: 1. Hold the drill vertically to the object when drilling, make sure both bit and workpiece are stable. Tilted bit is prone to breaking during drilling. Be careful when using an electric drill. Please start with the lowest speed and the lowest pressure. Drilling metal accumulates a lot of heat. Necessary to use coolant while drilling to keep bit cool. Both fine to use lubricating oil and pouring water.

Great product and very good quality. Made from M35 high-speed steel and 5% cobalt.Size: 6.2 mm. Working length: 55 mm, total length: 95 mm The blades are very sharp and they drill quickly into metal. Including steels, cast iron, copper, galvanised pipe, aluminium alloy, wood, plastic and other hard metals. If you need to drill carbide, it is strongly recommended to use drill press counter to the speed. Not for glass or ceramic. Full grinding nitriding, good wear resistance, durable spiral groove design, good chip removal performance. 135 tip twist design, increases cutting speed with self-centering and prevents walking. For professional and DIY use, household maintenance and repair. They are so good to save time. Works great and good price, will be a good assistant in your work.