Pilikoll 7 Pcs Center Drill Bits Set, Spotting Centering M2 High Speed Steel 60 Degree Angle Kit Countersink Tools for Lathe Metalworking 1.0 1.5 2.0 2.5 3.0 4.0 5.0

💎【M2 HSS High Speed Steel】Our center drill bits set is made of high-quality M2 high-speed steel, high temperature quenching, overall heat treatment, good wear resistance, corrosion resistance, low consumption, and durable. 💎【Fast Cutting】Triangular shank design is anti-slip, full grinding process, straight groove design, sharp edge, fast cutting, high work efficiency.Double-head design, both ends can be used for cutting, cost-saving, convenient and fast, universal straight shank, convenient disassembly and assembly 💎【Spiral Flute】The chip flutes are smooth and flat with a large spiral angle design, which increases the chip removal space, helps to remove chips and debris on the drill bit, prevents chip accumulation, reduces friction and heat, and is conducive to high-speed operation to accelerate chip removal without sticking to the tool and smoother drilling. 💎【High Performance】Entire center drill bit set contains 7 drill bits of different sizes from 1/1.5/2/2.5/3/4/5 to meet different needs. Drills can be used to process centering holes and countersinks of general materials, and can also be used to process center holes on the end faces of shafts and other parts. A reasonable 60 degree angle drills precise tapered holes in metal processing, which makes the positioning more accurate, reduces errors, and makes drilling more efficient. 💎【Wide Range of Uses】These center drills are used to maintain the production work pieces with require machining between centers or producing center in components. It is suitable for oriented twist drill to process holes to reduce errors. It can be used with lathes and most electronic drills screwdrivers for cutting, works for wood, steel, cast iron, stainless steel, aluminum alloy and other metal materials with a hardness of 35-40.