What tool do I need

[kd4gij]

Hi I need to drill a 5/8" hole with a 3/4 " counter bore in 316 SS . Have alot of these so looking for 1 tool for 1 shot

 

[mmcmdl]

How deep is the 5/8" hole ?

 

[kd4gij]

About 3/16"

 

[Joeman77]

Google Step drills for cap screw clearance, there's a lot of them out there. None of the good ones are cheap & I'd say if you're doing a bunch, the cheap ones are NOT what you're looking for!

 

[mmcmdl]

About 3/16"

That's it ? Counterbore + 3/8ths deep thru hole ? Well ...........................be back in awhile .

 

[mmcmdl]

Wait . Wait ! Hold on !

 

[mmcmdl]

.625 with .750 cbore ? I know where at least one resides !

 

[JimDawson]

What you need is one of these, Drill Counterbore, but I haven't found one in a 5/8 x 3/4

 

[kd4gij]

.625 with .750 cbore ? I know where at least one resides !

I f you have one PM me

 

[mmcmdl]

If I took a pic , I guess I have it .