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Diamond Rotary Tool bits

When it comes down to it there is nothing better than manual tools for your Lock pick Set, whether they be retail, homebrew, macgyver style. DIY'ers look here.

Diamond Rotary Tool bits

Postby dragonriot » 31 Jan 2007 18:02

If you guys have the time, hit up your local auto parts/jewelery/decorative stone/dollar store and get a box of Diamond cutting bits. These things I've just realized, are invaluable to the manufacture of picks and wrenches. They will NEVER get dull, and rip through steel like butter, without tearing it up so much that you have to file the metal when you are done. I'll be turning out a few picks on my diamond set tonight, and I'll report in on how they work.
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Postby Shrub » 1 Feb 2007 9:56

Please make reccomendations to buy things AFTER youve tried them not before, if everyone go's out and buys them and then all find out they are indeed crap for pickmaking then its on your reccomendation they have wasted their money,

Try them then say how they are, in my experiance they are good for what they are made for but for general metal working they are not,

You also did not state if they are slitting discs impregnated, burrs encrusted or wheels sintered or any mix of the above,
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Postby dragonriot » 1 Feb 2007 13:13

Sorry shrub... and anyone else who went out and spent money on my recommendation... Here's my review...

I was speaking of the diamond deburring pack... it has about 20 different shapes and sizes and I've found that the large cylinder (about 5/16" diameter) works very well for even control and cutting on wiper blades. The bogotas I posted in the Hall of Fame were all finished on the diamond deburring bits, and the top single was cut from start to finish on that tool. I run my dremel at about 8-10k RPM for cutting, and 4-6k RPM for finishing tasks.

As an aside, these things are crap for cutting hacksaw blades in their original form, though I might try annealing one before cutting it to see if it does any better with a softer steel. Also, after a hacksaw blade has been on the grinding wheel, the edges round up nicely on the deburring bits, but again I don't recommend using them to do the whole job, unless you like to take 3 hours to make one pick.
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Location: Wisconsin

Postby dragonriot » 1 Feb 2007 13:14

By the way... the set of bits I have costs me like $6.00 at a "rock store"....
dragonriot
 
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Postby Shrub » 1 Feb 2007 22:32

What colour are the wheels?

They work well if you clean them regulary as well, for the life of me i cant remember how to do it but its somthing soft that the wheel is spun on and it de-cloggs it straight away but at that price whats the point lol,
Shrub
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Postby dragonriot » 3 Feb 2007 2:36

Indeed.... what is the point?

They are not colored at all other than a grainy texture of the diamond dust on them. They look as much chromed as the rest of the dremel attachments.
dragonriot
 
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Postby Bump » 3 Feb 2007 14:21

Instead of diamond bits, which are designed for glass and ceramics, try using tungsten carbide bits which I have found ARE particularly good for tempered steel.

Although I have not tried them on hacksaw blades, used in a variable speed driver you should be able to control the heat build up commonly associated with static abrasive wheels.
Image
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Postby WDPaladin » 3 Feb 2007 16:09

Tungsten carbides are just plain old high-heat, carbon, iron, and tungsten alloys. Good cutting tool, but hey, a diamond is forever. (Cheesy commercial reference, sorry)
Image
Image
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Postby Bump » 3 Feb 2007 17:00

WDPaladin wrote:............. but hey, a diamond is forever. (Cheesy commercial reference, sorry)


Unfortunately not where hardplate and stainless steel are concerned! The base into which the itty bitty diamond shards are bonded just doesn't last as long as the pressure molded pure carbon that glitters within.
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