Division of Commercial Grinding Services,Inc. 2927 Nationwide Parkway, Brunswick, OH 44212 330-273-5040 | 800-379-1433 FAX: 330-273-5340 Mail: P.O. Box 1121, Medina, OH 44258
Home Fractional End Mills Metric End Mills Hi-Velocity End Mills Ferocious End Mills Storm End Mills Roughing End Mills Radius End Mills Profile End Mills Hi-Helix End Mills Technical Specs Place an ORDER Request a Quote   DOWNLOAD CENTER Product Master Catalog 'Ferocious' End Mill Flyer "Ferocious 3x" NEW End Mill Flyer 'Storm' End Mill Flyer 'High Velocity' End Mill Flyer 'VMAXx' NEW End Mill Flyer General Info/Policy— -Pricing Info -Return Policy -Shipping/Payment -Special Tooling Contact Us		TROUBLESHOOTING GUIDE— PROBLEM CAUSE SOLUTION CHIPPING FEED RATE TOO HIGH REDUCE FEED RATE UP MILLING  (CONVENTIONAL) CHANGE TO DOWN MILLING (CLIMB) CUTTING EDGE TOO SHARP HONE CUTTING EDGE OR ALLOW BREAK-IN CHATTERING REDUCE RPM LOOSE TOOL REMOVE, CLEAN, AND RETIGHTEN WORKPIECE RIGIDITY TIGHTEN WORKPIECE HOLDING METHOD TOOL RIGIDITY SHORTEN LOC, PLACE SHANK FURTHER UP HOLDER LOW CUTTING SPEED INCREASE RPM LOOSE TOOLHOLDER REMOVE FROM SPINDLE, CLEAN AND REPLACE WEAR HIGH CUTTING SPEED REDUCE RPM LOW FEED RATE INCREASE FEED RATE UP MILLING (CONVENTIONAL) CHANGE TO DOWN MILLING (CLIMB) HARD MATERIAL USE COATED TOOL POOR CHIP EVACUATION REPOSITION COOLANT LINES, USE AIR BLASTING IMPROPER CUTTER HELIX CHANGE TO RECOMMENDED HELIX ANGLE POOR COOLANT REPLACE COOLANT OR CORRECT MIXTURE BREAKAGE FEED RATE TOO HIGH REDUCE FEED RATE DEPTH OF CUT TOO LARGE REDUCE DEPTH OF CUT POOR TOOL RIGIDITY SHORTEN LOC, PLACE SHANK FURTHER UP HOLDER TOOL WEAR REPLACE/REGRIND SOONER POOR CHIP EVACUATION REPOSITION COOLANT LINES, USE AIR BLASTING CHATTERING SPEED AND FEED TOO HIGH REDUCE FEED RATE POOR TOOLHOLDER RIGIDITY REPLACE WITH SHORTER/MORE RIGID HOLDER POOR SPINDLE RIGIDITY USE LARGER SPINDLE OR DIFFERENT MACHINE TOOL WORKPIECE RIGIDITY TIGHTEN WORKPIECE HOLDING METHOD RELIEF ANGLE TOO HIGH REGRIND WITH SMALLER RELIEF ANGLE DEPTH OF CUT TOO LARGE REDUCE DEPTH OF CUT POOR TOOL RIGIDITY SHORTEN LOC, PLACE SHANK FURTHER UP HOLDER PROBLEM CAUSE SOLUTION SHORT LIFE CUTTER/WORKPIECE FRICTION USE COATED TOOL HARD MATERIAL USE COATED TOOL POOR MATERIAL CONDITION USE COATED TOOL, CLEAN MATERIAL SURFACE IMPROPER CUTTER ANGLE REGRIND WITH PROPER PRIMARY RELIEF ANGLE POOR COOLANT REPLACE COOLANT OR CORRECT MIXTURE CHIP PACKING FEED RATE TOO HIGH REDUCE FEED RATE OR INCREASE SPEED LOW CUTTING SPEED INCREASE RPM OR REDUCE FEED RATE INSUFFICIENT CHIP ROOM USE TOOL WITH LESS FLUTES, INCREASE HELIX INSUFFICIENT COOLANT INCREASE VOLUME OF COOLANT POOR SURFACE FINISH FEED RATE TOO HIGH REDUCE FEED RATE LOW CUTTING SPEED INCREASE RPM TOOL WEAR REPLACE OR REGRIND TOOL EDGE BUILD UP INCREASE RPM, SWITCH TO HIGHER HELIX TOOL DEPTH OF CUT TOO LARGE REDUCE DEPTH OF CUT CHIP WELDING INCREASE VOLUME OF COOLANT BURRING OR WORKPIECE CHIPPING TOOL WEAR REPLACE OR REGRIND TOOL IMPROPER HELIX ANGLE CHANGE TO RECOMMENDED HELIX ANGLE FEED RATE TOO HIGH REDUCE FEED RATE DEPTH OF CUT TOO LARGE REDUCE DEPTH OF CUT WORKPIECE ANACCURACY LOOSE/WORN TOOLHOLDER REPAIR OR REPLACE POOR TOOLHOLDER RIGIDITY REPLACE WITH SHORTER/MORE RIGID TOOLHOLDER POOR SPINDLE RIGIDITY USE LARGER SPINDLE OR DIFFERENT MACHINE TOOL INSUFFICIENT NUMBER OF FLUTES USE TOOL WITH HIGHER FLUTE QUANTITY TOOL DEFLECTION SHORTEN LOC, PLACE SHANK FURTHER UP HOLDER   Use the following PDF Sheet for an easy print-out form of the above. TROUBLESHOOTING CHART (PDF)

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