Topics include, Machine Tools & Tooling, Precision Measuring, Materials and their Properties, Electrical discussions related to machine tools, setups, fixtures and jigs and other general discussion related to amateur machining.
Made this right angle head for spot drilling from the inside diameter of a hard cast iron piece. The cast iron piece is part of an anti-theft device for semi trailers.
As you can see the drive shaft screws into the gear box with a special 1 1/8 - 20 thread. I made 2 spindles to hold drills. One spindle for 1/4 in shanks and another for 5/16 shanks.
Before doing serious drilling the gearbox will be covered. It worked better than expected.
