I would like to add support to some existing linear shafting on my mini gantry mill.
Will a solid carbide, 1/4" 2 flute 135 degree straight flute drill cut thru the case hardened surface?
I'm thinking I can spot drill the linear shafting then drill and tap holes for 8-32 SHCS to mount a 1/4" aluminum support rail to the 1/2" shafting.