Feb 19, 2013 · Whilst in mild steel a blunt drill will happily keep going to a fair degree, in 304 one or 2 1/4" holes even just 1/8" deep is the difference between disaster and success with a drill …

Mar 23, 2010 · My own experience in these matters: Help with cross-drilling 316 SS - The Home Shop Machinist & Machinist's Workshop BBS I found the Cleveland 135-split point screw …

Mar 4, 2013 · I am needing to drill both a NO. 47 (0.078) and a 3/32 (.0938) hole size through 1" thick 303 stainless. For the 3/32 hole I'm using a Dormer TIN coated HSS jobber and for the …

Jun 20, 2006 · Hi everyone- We have been having serious problems drilling both 3/16" and 1/4" holes in 304 stainless using the following: HSS, HSS TiN, Cobalt, Cobalt TiN, Cobalt TiCN, …

Jan 24, 2003 · What is the proper RPM for drilling stainless steel under the listed conditions? 1/4" thick bar of 304 Stainless steel. 5/16" cobolt drill bit Manual drill press I used a drill press …

Dec 25, 2023 · I have the Jet JMD-15 mill/drill and need to drill about 20 holes. Any recommendations on what bit would work best? Thanks

Nov 2, 2013 · How common is form tapping in this thread size? I have had great experience power tapping in a knee mill with smaller thread sizes in blind holes, small quantity: 30-40 qty …

Nov 1, 2017 · I need to drill .500 dia. thru hole in 304 stainless, Material is 1" thick, Any: tool, feed and speed recommendation, Thank you,

Mar 30, 2019 · I have read the many threads here on the fact that 316 Stainless is special to work with and I have a special situation that needs some old school help. I'm trying to drill into 4mm …

Jul 25, 2019 · Omegadrills are uniquely shaped carbide drills, created specifically for removing broken taps. This method is very effective, but it requires a very rigid setup. You can purchase …