I need to machine some HDPE to hold a bunch of specialized tooling for automation cell at
work. I need a 1.5D x 1.1 DP hole about 36 times. I bought a 1 1/2" and 1 3/8" spade
drill like the one you would use a hand drill to drill through pine.

My two thoughts were that the 1.5" one might do the job or the 1 3/8" one would make me a
nasty hole I'd hit with an offset boring head to finish. The work will be done on a
Bridgeport.

Thoughts, tips, tricks, warnings welcome.

Wes