evening,
got a bosch holesaw supposedly bi metal hss
what im wanting to do is cut a 1" hole 8mm off centre in 1" seamed tube 2mm wall thickness so put holesaw in lathe chuck and tube into vertical milling attachment i made ,1st try ok ,then 2nd one teeth starting pinging off holesaw what a mess it was only going about 50 rpm loads of oil about
are they poor quality would a broaching cutter off a mag drill be better
not very happy
got a bosch holesaw supposedly bi metal hss
what im wanting to do is cut a 1" hole 8mm off centre in 1" seamed tube 2mm wall thickness so put holesaw in lathe chuck and tube into vertical milling attachment i made ,1st try ok ,then 2nd one teeth starting pinging off holesaw what a mess it was only going about 50 rpm loads of oil about
are they poor quality would a broaching cutter off a mag drill be better
not very happy