RC-Monster Forums - View Single Post - M3 and 4-40 thread

Gustav · 06.12.2006, 11:51 PM

What diameter is the hole your threading then? I just have metric drill bits in .5mm incriments so if i'm drilling a hole to be tapped i use the same drill for M3 or 4-40 since there's less than .1mm diameter between M3 and 4-40,hence why i said they're about the same.

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Gustav RC-Monster Aluminum Offline Posts: 916 Join Date: Jul 2005 Location: UK	06.12.2006, 11:51 PM What diameter is the hole your threading then? I just have metric drill bits in .5mm incriments so if i'm drilling a hole to be tapped i use the same drill for M3 or 4-40 since there's less than .1mm diameter between M3 and 4-40,hence why i said they're about the same.