
USER GUIDE • When drilling stainless steel or high temperature • Following is the recommended coolant flow rate alloys using the ICM drilling head, it is highly and pressure. recommended to apply high pressure oil or 7-10% mineral or vegetable based oil emulsion. Coolant Flow Rate (liter/min) Minimum Coolant Pressure (bar) 30 15 flow rate 8, 12X D 12 20 5 X D INDEXABLE DRILLS 10 3 X D 1.5 X D 8 10 5 5 3 6 12 16 20 25 6 12 16 20 25 Drill Diameter D (mm) Drill Diameter D (mm) • For optimal performance, it is recommended to adjust • SUMOCHAM drills can be used either on milling centers runout of outer points or chisel with a maximum of or lathe machines. 0.02 mm. Large runout will influence drill performance tool life and hole quality. • When using SUMOCHAM drill in stationary (lathe) applications, we recommend using the ISCAR GYRO • No setup time is needed after indexing the SUMOCHAM device or eccenter sleeve to reduce misalignment. drill head. Misalignment will cause poor performance of the SUMOCHAM drill or even tool breakage. 1 Pre-hole 0.5xD deep 2 Slow rotation and 3 Maintain for 2-3 4 Continue drilling for centering feed while entering seconds and activate at recommended to the pre-hole the cooling system cutting conditions 0.5xD 0.5xD • Prior to using 8xD or 12xD drills, it is recommended to drill a 0.5xD pre-hole using a short or centering drill. Enter the pre-hole at slow speed and feed until 2-5 mm from its bottom. Start the cooling system and increase rotation to recommended drilling speed. Hold for 2-3 seconds, then, continue at the recommended drilling feed. 491 491