The Firing Line Forums - View Single Post

Hdonly · June 20, 2018, 06:40 AM

Has anyone used a 3/32" end mill to cut the rails on a 4140 steel frame? I have done some milling over the years on my 3 in 1 mill/drill/lathe but never with this small of an endmill. HSS with flood cooling? Carbide dry? Or is a key way cutter the best way to go? My equipment is all manual.

June 20, 2018, 06:40 AM	#1
Hdonly Senior Member Join Date: January 5, 2013 Posts: 340	4140 steel 80% 1911 Has anyone used a 3/32" end mill to cut the rails on a 4140 steel frame? I have done some milling over the years on my 3 in 1 mill/drill/lathe but never with this small of an endmill. HSS with flood cooling? Carbide dry? Or is a key way cutter the best way to go? My equipment is all manual.