High performance drill for volume production. Emc drills can be use on cnc machines, having shank diameters to milling cutter standards for use in milling chucks. Higher cutting speeds can be employed and long tool life can be expected. Powder metallurgy. High cutting speeds and tool life. Century coating for hard, low friction surface and excellent heat dispersal, maintaining cutter edge for longer. Milling cutter shank for secure chucking and concentric chucking for precision drilling. Cutting speeds & feeds recommendations:cutting data is based on whole depth at three times diameter. Where whole depth is greater, reduce feed figure by 2030%. Where whole depth is between three to five times diameter, step drilling is recommended. Emc drills are self centring therefore a centre drill is not recommended. Cutting fluid is recommended for all applications, for optimum cutting fluid should be in excess of 8 litres per minute.Step feed interval:whole depth 3 x d 4 x d 5 x d 6 x d 8 x d 10 x d.Step depth no step 1 x d 1 x d 1 x d 1 x d 1 x d. UK supply of quality hss jobber drills by Hitachi Cutting Tools, buy online with confidence at best discount price and fast shipping. Manufacturer product ID EMCR-8.5.
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