A 1/8 inch pilot hole followed by a 3/4 inch dia hole to be drilled in end of a 3.875 inch dia shaft.Calculate the RPM of each drill./ p' k( `4 |* }5 r5 D3 w$ p% l' Q
Note: CS=80! m2 b! e$ b% z% n) y
( E' k }5 }) y$ Y# P8 w% O* t2 n4 a' O
RPM 1/8=8 }' P. S$ d& F( f$ i! j
RPM 3/4=" s# X6 u2 _2 M& g