GENERAL TECHNICAL INFORMATION SET-UP Insert positioning •Cutting edge for drilling should be positioned in the center of tool body Cutting edge for drilling Correct Correct Wrong Coolant pressure • Must be above 20psi, optimal pressure is above 70psi Optimization of chip shape • Material with low carbon content High speed machining is recommended to make the chips thinner as many problems are caused by thick chips •Material with medium to high carbon content If too tight (thick chip?) increase speed if the speed is slow or reduce feed / If too loose (long chip?) reduce speed if the speed is high or increase feed. SET-UP Ø/2 Dia. of center cut-off Please check formation of core and its size after drilling .125" to .250" depth and diameter core should be within .006"-.018" If you are using a clamping unit, adjustment is easy and accurately performed by adjusting the Y-axis of the clamping unit •If a core does not appear It can cause breakage of inserts and vibration when drilling or turning •If the size of core is over the recommendation It will cause overload and vibration 1392