What drill bit to use?
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Road Captain
Joined: Nov 2008
Posts: 653
Likes: 1
From: Outer Banks of Insanity, IL
What drill bit to use?
Hey everyone,
I'm putting on a jiffy stand extension and ruined several drill bits in the process. I tried bits for tempered steel and doesn't do a thing! Am I looking at dropping $12 on a diamond tip for this? Thanks
I'm putting on a jiffy stand extension and ruined several drill bits in the process. I tried bits for tempered steel and doesn't do a thing! Am I looking at dropping $12 on a diamond tip for this? Thanks
Elite HDF Member
Joined: Sep 2006
Posts: 3,718
Likes: 11
From: Punta Gorda,FL
Is the problem that you can't drill through the chrome finish, on the jiffy stand? When I need to drill through something that is chrome plated, I use my dremil (high speed drill) with a sanding disc or grinder attachment. I only grind as big a spot as necessary, so I can start my drill bit on bare metal.
Tom
Tom
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Road Captain
Joined: Nov 2008
Posts: 653
Likes: 1
From: Outer Banks of Insanity, IL
Didn't have a problem drilling a pilot 1/8" to start. The ext. requires a 1/4" hole so I just thru the bit in and nothing, brand new tempered steel bit too! It scorched the tip like it couldn't cut?
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Road Captain
Joined: Nov 2008
Posts: 653
Likes: 1
From: Outer Banks of Insanity, IL
Yea, but I already got it started and like to finish it myself. Are there harder bits that can be used?
Seasoned HDF Member
Joined: Apr 2006
Posts: 10,675
Likes: 95
From: Billings,Mt.
Being a machinist i have drilled many holes.
I think the problem you are having is chatter and the drill motor and jiffy stand is not rigid enough causing the drill bit to bounce.
Of course the stand is probly forged so it would be tough to drill in the first place.This why i suggested to have a machine shop do it for you.
A carbide bit is expensive and can break very easily when not used properly.
If you want to try it again,i would suggest using a HSS/cobalt drill bit and slow rpm.
Last edited by 1flhtk4me; Jan 11, 2009 at 05:45 PM.
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Cruiser
Joined: Mar 2008
Posts: 184
Likes: 1
From: Oregon City, Oregon
Yes,carbide.
Being a machinist i have drilled many holes.
I think the problem you are having is chatter and the drill motor and jiffy stand is not rigid enough causing the drill bit to bounce.
Of course the stand is probly forged so it would be tough to drill in the first place.This why i suggested to have a machine shop do it for you.
A carbide bit is expensive and can break very easily when not used properly.
If you want to try it again,i would suggest using a HSS/cobalt drill bit and slow rpm.
Being a machinist i have drilled many holes.
I think the problem you are having is chatter and the drill motor and jiffy stand is not rigid enough causing the drill bit to bounce.
Of course the stand is probly forged so it would be tough to drill in the first place.This why i suggested to have a machine shop do it for you.
A carbide bit is expensive and can break very easily when not used properly.
If you want to try it again,i would suggest using a HSS/cobalt drill bit and slow rpm.
I'm sure there are machinists on here that would love to help.
Ron
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