Search found 1 match

by engineeruk1
Thu Nov 14, 2013 10:41 am
Forum: Reeds and Pipemaking
Topic: Gun Drilling
Replies: 10
Views: 11062

Re: Gun Drilling

Gun drills for cutting wood benefit from having a different cutting geometry on them than the one used for metals. See the link for the specifics- http://hammco.com/gundrills.php The point position of the tip is changed from being a quarter of the drill tip diameter(d), to d/3.5. There is also no ne...