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.0 t8 T. j6 I/ z) @0 `1 L4 s$ B
Note: CS=80 ; d, a% K% x q$ ~: J6 o 9 W( c) V- b6 D& \6 jRPM 1/8=$ B6 o: [ `! D! D1 Q+ v
RPM 3/4=7 W {# Q- k' [6 B2 z- y) ^
狗仔卡
鲜花(
鸡蛋(
发表于 2007-11-24 20:29
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
楼主
