I`m still happily working on my log hydraulic-splitter project and have now made-up a 'kit' of 15mm. plate components, some of which require 1½" and 1¾" holes boring in them for accepting the hardened-pins that locate the ends of the large hydraulic ram (one end fixed, one end moving).....in total: four holes through the 15mm. plate, two holes of each dia.
Clearly, my drill press isn`t going to be of much use for this (other than for stitch drilling) so what`s the best way to neatly 'create' these large dia. holes: I have a reasonably local 'heavy' fab. shop whom I might approach for assistance: but what process do I ask-for (i.e: easiest/fastest/cheapest)....punching/drilling/boring or flame/plasma-cutting (or perhaps another)?
The fab shop aren`t the most 'friendly' and approachable bunch and I want to be able to ask for the right service (and at the right price).
Clearly, my drill press isn`t going to be of much use for this (other than for stitch drilling) so what`s the best way to neatly 'create' these large dia. holes: I have a reasonably local 'heavy' fab. shop whom I might approach for assistance: but what process do I ask-for (i.e: easiest/fastest/cheapest)....punching/drilling/boring or flame/plasma-cutting (or perhaps another)?
The fab shop aren`t the most 'friendly' and approachable bunch and I want to be able to ask for the right service (and at the right price).