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Old 08-04-2010, 07:25 PM   #16
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Quote:
Originally Posted by MattFL View Post
Cobalt are also very hard and do great at cutting hard metals.
i just did it on a cobalt drill bit u can get one on a snap-on or mac but it will cost u as much as buying a lighten gear.
My is a set for and the set is 400.00.Just for my line of work.
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Old 08-04-2010, 08:20 PM   #17
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I have find one on Mcmaster for 14$ 4mm(solid carbide bit) should do the job..
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Old 08-05-2010, 09:37 AM   #18
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I tried it for fun and wasted 3 different drill bits from Home Depot. One of the bits did go through, but then it was dead. At $3 each hole (1 bit per hole), it is better to just buy a lightened one if they are available.
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Old 08-05-2010, 10:05 AM   #19
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Check with Tonys Screws, he has the light weight Mugen spur gears for 35$ and some change on his website.
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Old 08-05-2010, 08:27 PM   #20
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Originally Posted by gabor szilagyi View Post
I been trying to drill holes on the mugen spur gear,to lighten it up.Notthing sings to be work.That gear is just soo hard,and kill the bit almost right a way. I have tryed diff kind of bits what I could find in hardware and tool stores .I am using drill press with low rpm plus using cooling cut fluid to.I wondering if anybody knows what is the right way or the right bit .thanks!
After reading this thread imo the right way would be to buy the gear you need. Good luck .
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Old 08-05-2010, 08:37 PM   #21
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You right the best to buy one.I did not know it's available .R those gears same material as the stock one ?
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