Tool life equations for two tools under consideration are as follows HSS: VT0.2 = 150 Carbide: VT0.3 = 250 Where V is the cutting speed in m/min and T is the tool life in mm. The breakeven cutting speed above which the carbide tool will be beneficial is

Tool life equations for two tools under consideration are as follows H

1.	Tool life equations for two tools under consideration are as follows HSS: VT0.2 = 150 Carbide: VT0.3 = 250 Where V is the cutting speed in m/min and T is the tool life in mm. The breakeven cutting speed above which the carbide tool will be beneficial is
A.	54 m/min
B.	150 m/min
C.	194 m/min
D.	250 m/min
Answer» B. 150 m/min

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Tool life equations for two tools under consideration are as follows HSS: VT0.2 = 150 Carbide: VT0.3 = 250 Where V is the cutting speed in m/min and T is the tool life in mm. The breakeven cutting speed above which the carbide tool will be beneficial is

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