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.* d2 C- |8 q' l! j; ]2 T
Note: CS=806 P r7 B9 B2 b. C" p Z" e# t
( K- {% W8 A6 r/ g; ^( b! Y1 A2 w
RPM 1/8= + P4 L: x1 g D+ KRPM 3/4=$ `) C, w/ O$ s, R$ U* v
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发表于 2007-11-24 20:29
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