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sim · 10-04-2005, 06:15 AM

I have some 5mm dowel pins that I want to drill a hole through. I made a small flat spot on it for the drill bit to sit on and made a tiny dent on it with a scriber, oiled a drill bit and started drilling. I didn't have the really small bits, so I only started with a 1.5mm bit. I couldn't really apply a lot of pressure on it before the drill would wander off, so it pretty much just sat there drilling for a minute and made absolutely no progress.

I know many of you have drilled out your TLT axle input shafts to put the Stampede yoke screw through it, so I have to ask... what's the trick?

:?

Mnster · 10-04-2005, 06:58 AM

A sharp drill bit maybe I used my drill press on mine, I don't remember. But using the hand drill is better for guideing the drill straight. They where tough just get a new high quality drill bit and drill slow.

Ace · 10-04-2005, 08:43 AM

Never drilled TLT axles but in general when drilling hard stuff keep the rpm slow and don't be afraid to put some pressure on the drill.

Lots of hard to drill metal work hardens. If you don't push the drill a little (pressure) the material hardens and your drill cooks.

Keep oil on the bit too.

If all that doesn't help I find cussing helpful.

A carbide drill would be good, but most likely you'd have to order it.

ILoveRCRockCrawlin · 10-04-2005, 09:44 AM

i tried drilling throught the output shafts on the pede tranny and had the same problem so eventually i just said screw it and gave up.

sim · 10-05-2005, 04:36 PM

Quote:

Originally Posted by Mnster

A sharp drill bit maybe I used my drill press on mine, I don't remember. But using the hand drill is better for guideing the drill straight. They where tough just get a new high quality drill bit and drill slow.

A hand drill is the one that you crank with your hand?

Mad Scientist · 10-14-2005, 09:25 PM

I think he means a hand-held power drill, as opposed to a drill press.

sim · 10-16-2005, 08:52 PM

Oh ok. I already gave up on that hand-held power drill method. Since the drill bit is only 1.5mm, it doesn't like being leaned on too hard.

I've shelved this tranny design for now and I'm working on another design that doesn't involve drilling holes onto stainless steel rods. Might go back to it later when I have more suitable tools.

LANGER · 02-01-2006, 10:38 AM

For Stainless Your Drill Tip Angle Should Be 135 Deg.

BENDER · 02-01-2006, 10:47 AM

Cobalt split point drills work nice in S.S.

http://www.medfordtools.com/drillbits/

10-04-2005, 06:15 AM	#1
sim Quarry Creeper Join Date: Apr 2005 Location: Malaysia Posts: 374	Drilling into stainless steel I have some 5mm dowel pins that I want to drill a hole through. I made a small flat spot on it for the drill bit to sit on and made a tiny dent on it with a scriber, oiled a drill bit and started drilling. I didn't have the really small bits, so I only started with a 1.5mm bit. I couldn't really apply a lot of pressure on it before the drill would wander off, so it pretty much just sat there drilling for a minute and made absolutely no progress. I know many of you have drilled out your TLT axle input shafts to put the Stampede yoke screw through it, so I have to ask... what's the trick? :?

10-04-2005, 06:58 AM	#2
Mnster MWRCA'er Join Date: Apr 2004 Location: Machesney Park IL Posts: 3,995	A sharp drill bit maybe I used my drill press on mine, I don't remember. But using the hand drill is better for guideing the drill straight. They where tough just get a new high quality drill bit and drill slow. Last edited by Mnster; 10-04-2005 at 07:02 AM.

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10-04-2005, 08:43 AM	#3
Ace Rock Crawler Join Date: Apr 2004 Location: Longmont, CO Posts: 901	Never drilled TLT axles but in general when drilling hard stuff keep the rpm slow and don't be afraid to put some pressure on the drill. Lots of hard to drill metal work hardens. If you don't push the drill a little (pressure) the material hardens and your drill cooks. Keep oil on the bit too. If all that doesn't help I find cussing helpful. A carbide drill would be good, but most likely you'd have to order it.

10-04-2005, 09:44 AM	#4
ILoveRCRockCrawlin RCC Addict Join Date: Dec 2004 Location: Central NY Posts: 1,980	i tried drilling throught the output shafts on the pede tranny and had the same problem so eventually i just said screw it and gave up.

10-14-2005, 09:25 PM	#6
Mad Scientist RCC Addict Join Date: Mar 2005 Location: Saginaw Posts: 1,721	I think he means a hand-held power drill, as opposed to a drill press.

10-16-2005, 08:52 PM	#7
sim Quarry Creeper Join Date: Apr 2005 Location: Malaysia Posts: 374	Oh ok. I already gave up on that hand-held power drill method. Since the drill bit is only 1.5mm, it doesn't like being leaned on too hard. I've shelved this tranny design for now and I'm working on another design that doesn't involve drilling holes onto stainless steel rods. Might go back to it later when I have more suitable tools.

02-01-2006, 10:38 AM	#8
LANGER Newbie Join Date: Jan 2006 Location: THE ‘BURG Posts: 13	For Stainless Your Drill Tip Angle Should Be 135 Deg.

02-01-2006, 10:47 AM	#9
BENDER 2006 2.2 National Champ Join Date: Dec 2004 Location: Big Bear Lake Posts: 8,328	Cobalt split point drills work nice in S.S. http://www.medfordtools.com/drillbits/

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