trimming a groove-tool holder

Topics include, Machine Tools & Tooling, Precision Measuring, Materials and their Properties, Electrical discussions related to machine tools, setups, fixtures and jigs and other general discussion related to amateur machining.

Moderators: Harold_V, websterz, GlennW

Post Reply
RSG
Posts: 1154
Joined: Fri Feb 04, 2011 9:59 am
Location: Ontario, Canada

trimming a groove-tool holder

Post by RSG » Sat Feb 15, 2020 8:26 am

I bought a profiling tool with inserts to plunge profiles and the smallest tool holder I could get was .75" x .75". My question is how difficult is it to machine .25" off the bottom to fit my tool post holders. A friend from Ohio did one for me already but I think he ground it down. I don't have a surface grinder so I was hoping to do it in the mill.

Image

Thanks in advance
Vision is not seeing things as they are, but as they will be.

User avatar
GlennW
Posts: 6829
Joined: Sun Apr 15, 2007 9:23 am
Location: Florida

Re: trimming a groove-tool holder

Post by GlennW » Sat Feb 15, 2020 8:59 am

Shouldn't be a problem for you to mill it down.

I've done similar to a couple and have found them to be right around 50 RC hardness on ones I've tested.
Glenn

Operating machines is perfectly safe......until you forget how dangerous it really is!

Russ Hanscom
Posts: 1635
Joined: Wed Mar 15, 2006 11:10 pm
Location: Farmington, NM

Re: trimming a groove-tool holder

Post by Russ Hanscom » Sat Feb 15, 2020 9:28 am

I have also cut down a few shanks without incident. As an option , I have made a few custom tool holder blocks that take a larger shank.

User avatar
liveaboard
Posts: 1024
Joined: Sun Dec 08, 2013 1:40 pm
Location: southern Portugal
Contact:

Re: trimming a groove-tool holder

Post by liveaboard » Sat Feb 15, 2020 6:56 pm

I did a couple in the lathe [not having a mill], and it wasn't very hard.
Difficult I mean.
Or hard.

John Evans
Posts: 2102
Joined: Tue Jan 20, 2009 9:33 pm
Location: Phoenix ,AZ

Re: trimming a groove-tool holder

Post by John Evans » Sat Feb 15, 2020 10:19 pm

Carbide mill.
www.chaski.com

User avatar
BadDog
Posts: 4874
Joined: Wed May 17, 2006 8:21 pm
Location: Phoenix, AZ

Re: trimming a groove-tool holder

Post by BadDog » Sat Feb 15, 2020 11:10 pm

I've cut down a few Kennametal holders without difficulty. As others have said, not very hard, but didn't cut easily. I used a 1/2" 3 flute carbide roughing EM, which did the job to my satisfaction.
Russ
Master Floor Sweeper

RSG
Posts: 1154
Joined: Fri Feb 04, 2011 9:59 am
Location: Ontario, Canada

Re: trimming a groove-tool holder

Post by RSG » Sun Feb 16, 2020 1:25 pm

Thanks fellas. I have a carbide 1/2" EM so I'll use that.
Vision is not seeing things as they are, but as they will be.

Post Reply