Guhring Solid Carbide Drills

[Joseph Souza]

Forget the Carbide use OSG SUS Gold Drills you'll see better results, no center drilling , longer tool life and less cost?

Let me know what you think.

joe_souza@sbcglobal.net

[bma137]

Originally Posted by dertsap i highly doubt the speed is too high ,ive been using a similar drill in 4140 forgings 4700rpm @ 42"/min 1.75 dp did you dial up the drill to make sure there is 0. runout

Dertsap, this sounds crazy, what diameter is it? and what collets are you using?
also is it a VMC or HMC?

[dertsap]

13/16 kenametal ( same stuff), on a vmc , er collets , we don t plan to drill a million holes at that but it works for what we need
spot drilling and center drilling has been pointed out a couple of times ,
the ONLY time to spot is on a really bad surface , not recommended or required for carbides otherwise

not telling you to neccessarily go by my example , only what the tools are capable of