Better drill bits

[pepi]

Shopping around for some good drill bits, does anyone have knowledge or experience with this manufacture?



http://www.wintersdrillbitcity.com/

Greg

[BoredMechanic]

Shopping around for some good drill bits, does anyone have knowledge or experience with this manufacture?



http://www.wintersdrillbitcity.com/

Greg

I have not heard of them. Norseman serve me very well daily. If you end up buying that brand please post a review. http://www.discountshoptools.com/Norseman-SP-29P-29-pc-Sraight-Shank-Jobber-Length-Drill-Set-NDT-SP-29P.htm;jsessionid=05503E16A988D2A08651B380052EFD73.p3plqscsfapp005

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[pepi]

Happy too, will see

Greg

[Uncle Buck]

I found a good set of Norseman's at HJE too.  https://www.harryepstein.com/index.php/norseman-29-pc-drill-bit-set.html

Not a bad deal for USA made set with fraction, letter and number bits too! https://www.harryepstein.com/index.php/115-pc-high-speed-norseman-drill-bit-set.html

Could be helpful since you have a mill to use them in.

[slip knot]

The winters site listed left hand bits. I've been on the lookout for a good set of left cutting bits. But they didn't list any prices?

I put a VFD on my drill press and a reverse was one of the reasons.

[Uncle Buck]

The winters site listed left hand bits. I've been on the lookout for a good set of left cutting bits. But they didn't list any prices?

I put a VFD on my drill press and a reverse was one of the reasons.

https://www.ebay.com/p/?iid=181850968817&lpid=82&&&ul_noapp=true&chn=ps

https://www.ebay.com/p/?iid=182419965927&lpid=82&&&ul_noapp=true&chn=ps

This site looks interesting. https://www.drillamerica.com/product-categories/drills/sets-drills-wmetal-index/reduced-shank-drill-sets-sets-drills-wmetal-index/products/116-12x64th-14-sh-hss-drill-set/

Amazon selling Drill America USA made left hand bit sets. https://www.amazon.com/Drill-America-DWD13J-LH-SET-High-Speed-Conventional/dp/B00FXGN968/ref=sr_1_8?s=industrial&ie=UTF8&qid=1493778387&sr=1-8&keywords=left%2Bhand%2Bdrill%2Bbit%2Bsets&th=1

[Uncle Buck]

Shopping around for some good drill bits, does anyone have knowledge or experience with this manufacture?



http://www.wintersdrillbitcity.com/

Greg

Probably decent quality bits sets Greg as long as they are not priced in the clouds. 

[pepi]

Searching and using the words best drill bits, practical machinist popped up with a thread discussing the different manufactures.  Of, I'll call them high end drill bits, meaning 750 for a 3 size set. Now I'm not going to take a second mortgage for a set of bits, however this manufacture was mentioned as one to look into.

UB I did look at these, Norseman at HJE.

Greg

[Muddy]

Triumph Twist Drill

They make Snap On's thunder bits.


https://www.google.com/search?q=triumph+twist+drill&client=ms-android-verizon&prmd=svin&source=lnms&sa=X&ved=0ahUKEwi2k9i6t9PTAhVNziYKHflIDXkQ_AUICCgA&biw=360&bih=512&dpr=3#xxri=5

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[gtermini]

Speaking from the machine shop side.

The best drills I have found hands down are Nachi Cobalts from Singapore (used to be Japan, but the quality is still very good). My current runner up, and easier to get/cheaper are Precision Twist Drill Co Cobalts (COO is Brazil I think). I can have the PT drills from MSC next day 95% of the time. $3-15 each.

The worst "mid-range" drills I had were plain black oxide Chicago-Latrobe. They couldn't hold an edge in 4140 alloy steel. Junk, and not cheap either.

I only buy screw machine length because it's rare to have to drill a hole more than 5X the diameter deep. Deep hole drilling (beyond 3X diameter) is a hole (hehe) different ball game. The stubby drills don't wind up and pop like a spring as bad when drilling tough material (inconel/stainless/titanium rotten stuff). That popping you hear is the cutting edge being jack hammered and destroyed.

The fancy color coatings are a joke unless you're running a CNC mill at max chip load and trying to eeek another 3 minutes of tool life.

I don't sharpen drills. The shop rate is $85/hr and spending even 2 minutes at the grinding wheel is more than a new drill costs, plus I guarantee it will cut oversize even if done on a dedicated machine. To match a factory quality split point requires a $10k drill grinder.

Greyson

[pepi]

Greyson,

I want to buy machine shop quality bits, the PT bits and the ones I ask about are of the same quality. The bits have flats on the fractional, wire and letter are round.

 Yeah I have the belief that the coating is not what it's cracked up to be......coatings wear off, how do folks miss that? Spend a little up front pays off down the road..

Thanks  Muddy, for the link those are interesting looking.....
Greg

[platypus20]

Greg,

check out Drill America, I have tons of their taps and drills


https://www.drillamerica.com/

[krusty the clown]

I have used snap-on's thunderbits for many years without complaint. I have also used the norseman sp's and found them to be very good. If i feel the need for a new set it will be the norsemans. I also prefer the 135 deg split point.

[slip knot]

I ordered the set of leftys from Drill America. Should be here next week. This is one tool I hope I don't need cuz that means I broke something.

[pepi]

Jack,
Sure will thanks for the link...

Greg