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Kernboor toerentallen
FEEDS anD SpEEDS Core drill cutting speeds
Cutting SpeedS. Suggested speed rates for varying cutter sizes/materials
1000
900
800
700
600
Speed (RpM) 500 TOOL FEED RATE ENGLISH
400
300 MateRial
Feed rate - (mm/min) (inches/min)
3
200 ALUMINIUM - 60 2 /8“
BRASS - 45 1 / 4“
3
100
MILD STEEL - 24 1”
HI TENSILE STEEL - 9 3 /8“
(mm) 100
CutteR diaMeteR
(inches)
1 / 2“ 1” 1 / 2“ 2” 2 / 2“ 3” 4”
1
1
PLEASE NOTE:
These figures are quoted as a starting point. Actual performance will be dictated by material type, thickness and hardness, application and cutter condition.
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