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.* Z, a! h; N1 m E/ j/ U0 @3 g0 s
Note: CS=80 ( a+ s2 \6 ^8 D+ X- O h# n% \& k5 L8 U2 TRPM 1/8=; G( a5 N& E6 N
RPM 3/4=; \3 F" a, F, l5 j+ m
* S8 E! J: B; Q) |9 a; O% F
Thanks a lot.