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Old 10th Feb 2019, 5:04 pm   #24
g4wim_tim
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Join Date: Nov 2018
Location: Freckleton, Lancashire, UK.
Posts: 232
Default Re: Using hole punches on die cast boxes

I've used q max cutters and step drills with no problem on die cast boxes and aluminium.

However on thicker materials (2mm) I find the diameter of the hole is slightly different on each side when using a step drill as even they have a small taper.

I only use cone drills / reamers for de-burring.

Never in 50 years of using q max cutters have I had trouble punching holes in die cast boxes plus I'm still using the same q max punches - must have been well made !

I always use step drills at the minimum speed in my drill press.

Regards Tim
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Building and tinkering for over 50 years, from 807's to digital amateur TV.
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