Deep hole drilling of small diameter, say 0.2 mm is done with EDM by selecting the total material as
Linked Data: Blind hole 10mm diameter, 50mm deep are being drilled in steel block, drilling spindle speed is 600rpm, feed 0.2mm/rev, point angle of drill is 120 During the above operation, the drill wears out after producing 200 holes.Taylor's tool life equation is of the form VT0.3=C, where V= cutting speed in m/min and T= tool life in min. Taylor's constnat C will be