Very hard bracket
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Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Very hard bracket
I just bought a cheap Drag Specialties tach for my bike.
It turned out the bracket was too tall so I thought just cut it off and drill a new hole. No problem.
Turns out it was a very big problem as I couldn't get a drill bit to bite this stuff.
I went through 4 conical grinding bits to get almost all the way through then used some carbide drill bits to get the rest of the way. When drilling the metal turned a bright orange but I got through.
I have never seen any metal this hard.
Does anyone have any ideas what it could be made of??
It turned out the bracket was too tall so I thought just cut it off and drill a new hole. No problem.
Turns out it was a very big problem as I couldn't get a drill bit to bite this stuff.
I went through 4 conical grinding bits to get almost all the way through then used some carbide drill bits to get the rest of the way. When drilling the metal turned a bright orange but I got through.
I have never seen any metal this hard.
Does anyone have any ideas what it could be made of??
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Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Can't be 'cause they got it in China or Taiwan or were ever the tack was made.
Undrilliainium or something like that maybe.
Undrilliainium or something like that maybe.
Road Warrior
Joined: Dec 2007
Posts: 1,286
Likes: 64
From: SoCal
Well, in any case I hope it works out for ya.
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Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Like I said above I got through it using conical grind stones.
I have just never seen any metal this hard.
Have you seen anything you couldn't drill?
By the way I used a drill press I didn't free hand the drilling.
Seasoned HDF Member
Joined: Apr 2011
Posts: 6,185
Likes: 2,134
From: W. Texas
Have run into that Best I could tell it was a funny kinda stainless steel. That and styainless work hardens, that and heat treat it it becomes very hard. Have seen stuff that even a cut off wheel can barely get through. Turning orange makes me think of some stainless we have worked with.
Respects WP
Respects WP
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