Guhring Coolant Thru Drills

[Murray Mold]

Does anyone here use these or have used them in the past?

I've got a 05512 carbide coolant thru drill and the Speed/Feed PDF says in tool steels to run it 4074 RPM @ 81 IPM.....that seems WAY FAST to me.

 

The machine I'm going to run it in has coolant thru spindle and I'm drilling 10xD which is 3.75 deep with a 9.52mm (3/8") drill in H-13.

 

Anybody have any recomendations on peck depth or should it peck at all?

Thanx

[Hardmill]

Youd be surprised at what these drills can do.

My experience with them has been running at

the reccommeneded speeds and feeds.

They pretty much nail it every time.

Great tools.

 

Just let it do its thang

 

 

I would guess 3X dia peck, they as a rule dont

like to peck but 10X is pushin it.

 

 

PEACE

[keith mc.]

i would start with a shorter drill maybe 3-5x dia and then use the 10x dia length drill. DO NOT use peck drill they work better if it is a straight drill cycle. i agree with Hardmill use the recommended speeds and feeds if not comfortable with it phone your tool supplier and have the rep come in that way if you break it using their recommended s/f you can get another for no cost!

[Lars Christensen]

Love Guhring drills, how much psi? 1000? then just have at it

[Murray Mold]

Yes, it's 1000 psi CTS

Thanks for the info guys

[Hardmill]

A couple yrs back we tested some guhring drills

on some heat treated S7. 6mm dia we took

5 times dia deep in 2 pecks.

Air thru the spindle no coolant.

 

A thing of beauty I tell ya.

 

 

PEACE

[Mike S @ S4A]

yeah I did something similar in H13: a pattern of 1346 3/16" diameters thru depths ranging from 1.5" to 3"...drills were firex series 575 I think..used G81 .6" deep first pass and successive passes each .3-.6.....

[chris m]

Guhring's "High Performance" line of carbide can definitely walk the catalog's talk in my experience. We were very skeptical when we first tested these drills but the performance was very impressive.

[Guest CNC Apps Guy 1]

Titex and Guhring are about on par quality-wise and yes... rigid setup, little to no runout on the tool and you will be amazed. 20k RPM and 192 IPM on a 1/4" Drill 10x Diameter deep in 7000 Series aluminum - NO PECK! Oh, and the holes had a reamed finish.

 

Scared the $#!+ outta me the first time.

[Murray Mold]

I ran a few of these parts yesterday with a HS drillbit and it took 5 min. 21 sec. to drill said hole.

Today with the CTS drill it's taking less than 5 seconds!! And like James said above...reamed finish!!

 

Thanks again guys.

 

edit: The drill cost $193.00 but it has paid for itself on 25 parts

[Hardmill]

 

 

PEACE

[Guest CNC Apps Guy 1]

THAT is progress.