feedback about new drill bits - Page 2

Frank Castros · 04-15-2021, 09:28 PM

Great thread.

dwydendorf · 04-15-2021, 09:32 PM

Another thing to mention about drill bits are the the point on a drill needs to be narrowed down so it will cut freely. Some drills are naturally thick at the point, causing the drill to try to push the metal in the center instead of cutting it. Turn the drill up on end and narrow the point on the corner of a grinding wheel on a bench grinder.

SSDiv6 · 04-15-2021, 10:06 PM

Depending on the amount of drilling or tapping I am doing, I use a lubricant developed and in use by my former employer under the name of Boelube.

It prolongs the life of drill bits, taps, end mills and tools. It's available through many vendors including Amazon. It is biodegradable and safe on materials.

https://orelube.com/about-boelube-products/pastes/

JHeath · 04-16-2021, 08:58 AM

www.norsemandrill.com

L78 Nova · 04-16-2021, 09:30 AM

Quote:

Originally Posted by dwydendorf

Another thing to mention about drill bits are the the point on a drill needs to be narrowed down so it will cut freely. Some drills are naturally thick at the point, causing the drill to try to push the metal in the center instead of cutting it. Turn the drill up on end and narrow the point on the corner of a grinding wheel on a bench grinder.

I just purchased a new drill index (Korean made?) They drill triangulated holes !!! I don't understand how, but they do... GARBAGE.

curtis reed · 04-16-2021, 09:49 AM

Quote:

Originally Posted by L78 Nova

I just purchased a new drill index (Korean made?) They drill triangulated holes !!! I don't understand how, but they do... GARBAGE.

Are they split point drills? If so that is probably why. You have to have your tool and part clamped and supported solid to keep it from happening. Standard point drills will drill a more round hole if using a hand drill or light duty drill press.

dwydendorf · 04-16-2021, 10:48 AM

Quote:

Originally Posted by L78 Nova

I just purchased a new drill index (Korean made?) They drill triangulated holes !!! I don't understand how, but they do... GARBAGE.

That is what happens when they are not sharpened right. One side of the drill point is longer than the other, causing the center to be off center, allowing the drill bit to wobble, causing a three corner hole. Resharpen the end, taking more off the short side to make the point even, and they will cut better. When a drill bit is sharpened right, you will have a chip comming off both sides of the drill. If your chip is only comming off one side of the drill, your point is off center.

monte385 · 04-17-2021, 01:32 PM

Lots to pick from here. https://www.mcmaster.com/drill-bits
I bought a number set several years ago & they are excellent.

Jeff Niceswanger · 04-17-2021, 02:53 PM

I retired from a huge breakfast cereal manufacturer. The entire place was stainless steel so we brutalized drill bits. These were my favorites... They really do wear well, but their not cheap

https://www.lawsonproducts.com/Super...-Pcs/P7123A.lp

04-15-2021, 09:28 PM	#11
Frank Castros VIP Member Join Date: Nov 2001 Location: The Lowcountry. Posts: 2,638 Likes: 2,151 Liked 2,073 Times in 766 Posts	Re: feedback about new drill bits Great thread.

04-15-2021, 09:32 PM	#12
dwydendorf Member Join Date: Jul 2006 Location: michigan Posts: 162 Likes: 248 Liked 19 Times in 7 Posts	Re: feedback about new drill bits Another thing to mention about drill bits are the the point on a drill needs to be narrowed down so it will cut freely. Some drills are naturally thick at the point, causing the drill to try to push the metal in the center instead of cutting it. Turn the drill up on end and narrow the point on the corner of a grinding wheel on a bench grinder. __________________ ss/gt 93 t-bird Last edited by dwydendorf; 04-15-2021 at 09:47 PM.

04-15-2021, 10:06 PM	#13
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 2,989 Likes: 690 Liked 1,453 Times in 541 Posts	Re: feedback about new drill bits Depending on the amount of drilling or tapping I am doing, I use a lubricant developed and in use by my former employer under the name of Boelube. It prolongs the life of drill bits, taps, end mills and tools. It's available through many vendors including Amazon. It is biodegradable and safe on materials. https://orelube.com/about-boelube-products/pastes/

04-16-2021, 08:58 AM	#14
JHeath Senior Member Join Date: Jul 2004 Location: Minneapolis Posts: 788 Likes: 2,890 Liked 370 Times in 102 Posts	Re: feedback about new drill bits www.norsemandrill.com __________________ Jerry Heath I/S '93 Cobra FS/J 2010 Mustang "Ebay CJ"

04-17-2021, 01:32 PM	#18
monte385 Junior Member Join Date: Oct 2015 Posts: 51 Likes: 33 Liked 17 Times in 14 Posts	Re: feedback about new drill bits Lots to pick from here. https://www.mcmaster.com/drill-bits I bought a number set several years ago & they are excellent.

04-17-2021, 02:53 PM	#19
Jeff Niceswanger Senior Member Join Date: Jul 2003 Posts: 771 Likes: 586 Liked 839 Times in 293 Posts	Re: feedback about new drill bits I retired from a huge breakfast cereal manufacturer. The entire place was stainless steel so we brutalized drill bits. These were my favorites... They really do wear well, but their not cheap https://www.lawsonproducts.com/Super...-Pcs/P7123A.lp __________________ Jeff Niceswanger 3740 SS Last edited by Jeff Niceswanger; 04-17-2021 at 02:56 PM.