High Performance The center drill bit set contains 7 sizes of 1/1.5/2/2.5/3/4/5 to meet different needs. The drill bits can be used for centering holes and countersinking general materials. A reasonable 60-degree angle drills precise tapered holes in metal processing, making positioning more accurate, reducing errors, and making drilling more efficient. Fast Cutting The triangular shank design is non-slip, full grinding process, straight groove design, sharp edge, fast cutting, high work efficiency. Double-head design, both ends can be used for cutting, economical, convenient and fast, universal straight shank, convenient disassembly and assembly, Spiral Grain 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. Preiumn Each center drill bit adopts 6542 high-speed steel material, high-temperature quenching, overall heat treatment, which has good wear resistance, low consumption and durability. Clear cutting edge, precision grinding surface corrosion resistance, achieve better use effect and extend service life. Widely UsedThese center drills are used to hold production parts that require machining between centers or a production center in components. It is suitable for oriented twist drills to process holes to reduce errors. It can be used with lathes and most electronic drills, screwdrivers for cutting, work for steel, iron, aluminum alloys and other metal materials. 7pcs Center Drill Bit Double Ended Drill Bit 60 Degree 1/1.5/2.0/2.5/3.0/4.0/5mm A 60 degree angle center drill is very useful for drilling accurate center holes. Each drill bit has a double end and is ground with a standard 60 degree angle. Fast cutting, good chip evacuation, sharp edge. High strength and hardness. Easy to produce center holds in components or parts that require machining between centers. HSS Center Drill Bit 60 Degree Double Ended High Speed Steel Center Drill Bit Set of 7 HSS Steel Lathe Milling Center 60 Degree Center Drill Bit Set of 7 HSS High Speed Steel Center Drill Bits Double Ended Center Drill Bits Workshop Center Drill Hss Stainless Steel Milling Lathe Bit Clear scale on the drill bit so you can quickly find the one you need. The 60 degree angle center drill bit is very helpful for drilling accurate center holes. The large spiral groove design is conducive to chip removal, smooth and flat. Made of high quality high speed steel, high hardness, good toughness and sharp and durable. 7pc HSS 60 Center Drill Bits Center Milling Cutter Drill Set Tool The whole center drills total come with 7pcs milling tool with different sizes, including 1.0 1.5 2.0 2.5 3.0 4.0 5.0, which can meet your different needs. HSS-E High Speed Steel Cobalt Center Drill Bit with 118 Degree Pilot and 60 Degree Cone The center drill bit can work with lathe machines and most electronic drills to drill holes in cast steel, cast iron, aluminum alloy, arbon steel, wood, thread mold and other tough materials of hardness 45, it will improve the drilling efficiency. HSS Metal Center Drill Bits 60 1/1.5/2/2.5/3/4/5mm for Drilling Wood High Speed Steel Center Drill Bit Kit Set Combined Milling Speed Tool Delivery quantity: 7 pieces Product color: silver Product size: 1 / 1.5 / 2 / 2.5 / 3 / 4 / 5mM Note: Manual measurement, please allow 1 - 3cm error!!! Yeuri