SumiDrill Power Series SDM Type New General Features Shank Flat and narrow single margin DIN 6535 HAK Reduced frictional resistance and heat development Large cooling channels Large chip pocket Improved coolant distribution Improved chip evacuation Sumi-Power Coating Increased wear resistance and long tool life Sharp cutting edge Stock Size Optimised for stainless steel Ø3,0 ~ Ø12,0 and reduction in cutting forces Increment 0,1mm Ø12,1 ~ Ø16,0 Standard diameter Advantages High process reliability in stainless steel and low carbon steel Can be used on low-performance machines! (àavoids overload!) High surface quality in the bore Sharp cutting edge High adhesion resistance by Sumi-Power Coating 0.3 SDP (universal drill) High rigidity High wear resistance 0.2 SDM (sharp cutting edge) Low burr formation 0.1 Low cutting forces Stainless Steel Low carbon steel Carbon steel, cast X5CrNiS18 10 (1.4301) Ck10 (1.1121) C35 ~ C55 (1.0501 ~ 1.0535) X7CrS17 (1.4104) etc... 42CrMo4 (1.7225) etc... GG25 (0.6025) etc... Difficult to machine Good machinability K12 Multi-Drills Feed Rate for ø 6,0 - 12,0