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. * J& V" z( G8 S2 j6 R) MNote: CS=80 + v4 D& I$ d7 z3 J" ]- ^# P9 W8 H% [0 E) n' P! i l9 H4 a
RPM 1/8=+ [0 _0 J& Q# b" S5 J3 n9 ^
RPM 3/4= & |) `4 l6 D% x( g7 K( X7 U6 o3 e- e' e3 I+ ]3 a3 E( g; ^
Thanks a lot.
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发表于 2007-11-24 20:29
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