Holiday Greetings from North American Tool - 2017

Holiday Greetings from North American Tool

Check out our short video wishing you all a Merry Christmas and a Happy New Year!

Hand Taps vs. Machine Taps - Are Some Terms Past Their Expiration Date?

Hand Taps vs. Machine Taps - Are Some Terms Past Their Expiration Date?

“Hand Tap” and “Machine Tap”, are terms that don’t always mean what you might think! These are stale industry “legacy” terms. Originally meant to define a purpose, they can be misleading to people in the industry. They should not define a tap’s modern method of use.

According to some handbooks, the term “Hand-Tap” has traditionally been applied to fractional size taps having a standard general purpose length. Most manufacturers don’t limit the description to fractional sizes. Assumed to be straight-flute, these are taps whose flutes are provided as a space to accommodate chips created as the tap cuts.

Tags: Hand Tap, Machine Tap, Spiral Flute, Spiral Point, Tap Terminology

Do you have a Need for Speed? Use Multiple-Lead Threads...

Do you have a Need for Speed? Use Multiple-Lead Threads...

When you have a long way to go, and a short time to get there, there's a thread option available. Multi-start, also known as multiple-lead taps create a thread that offers quick assembly and disassembly. Most of us take these type of threads for granted, but see their use daily. From the caps on water and juice bottles, to the handles on our bathroom faucets, multiple-lead threads make life a little bit easier.

Tags: Multi Lead, Multi-Start, Multiple Lead, Multiple Start

SPECIAL TAPS = Solutions at the Highest Level

SPECIAL TAPS = Solutions at the Highest Level

First Level Solution

Standard taps have features that satisfy most applications. They are “General-Purpose” taps for this reason. Dimensionally, they try to hit the sweet spot, and check most of the common boxes.  Shanks and squares are accommodated by standard tool holders. The lengths of the tool, and length of thread, are sufficient for most set-ups and part requirements for depth of thread. Pitch-diameters are safely above the Go Gage to produce the specified Class-of-Fit for finished thread, and still distant enough from the “No-Go” to avoid any risk of producing oversized thread. Easy, in a cookie-cutter world, but not always that simple.

Tags: application specific taps, High Performance, Special Tap, Standard Taps

All These Flutes...and No Music??

All These Flutes...and No Music??

A question was recently asked,” If Spiral-flute taps will work in both blind and through holes, why do I need a Spiral-point?” Sounds a bit like the lyrics to a sad Country song.


The answer to the question lies in the details of the application. Technically, all flute configurations will make threads in both “through” and “blind” holes. The decision on which is appropriate is based on producing desired chip flow. Chip evacuation is an issue that contributes heavily to the success, or failure of a tap. Also remember that flutes accommodate the volume of coolant or lubricant applied, not just the material chips created in the process. It can get crowded in there!

Tags: Gun Taps, Hand Taps, spiral flute taps, spiral pointed taps

From Skinny Jeans to Loose Fit; Taps Have Class of Fit

 From Skinny Jeans to Loose Fit; Taps Have Class of Fit
Imagine you are trying on a new pair of pants. Your waist size dictates the class of fit. You are the bolt. Unfortunately, the likelihood that you find a pair that fits perfectly is rare. Too tight and too loose are immediately obvious. (I know it's a stretch from making threads in metal, but stay with me.) Now imagine that tight is the "Go" gage, and loose is the "No-Go" gage. Anywhere between the two, is acceptable. Maybe not completely comfortable, but acceptable. Thankfully, you have the ability to "fine-tune" the fit. You buy a belt. The notches in the belt are the "H-limit's". The first notch is very close to your waist size. The last notch barely stops your pants from falling down. Every notch in between changes the way you, and your pants, fit together.

Tags: Class of Fit, Go Gage, Internal Metric Thread, Internal Unified Thread, NoGo Gage

Does This Make my Buttress Look Big? Buttress Threads are Designed to Support or Reinforce.

Does This Make my Buttress Look Big?

The next time you unscrew the cap from your tube of toothpaste, take a look at the threads. They are quite likely Buttress threads. Have you used an adjustable wrench lately? Look at the thumb-screw. Buttress! All this time, right under your nose, was a thread-form that most people think, or know very little about.


Synonyms for "buttress" include; strengthen, reinforce, fortify, and support. The unique geometry of a buttress thread-form fulfills that requirement.

Tags: Buttress, Buttress Threads, Threads to Reinforce, Threads to Support

North American Tool Recognizes Adam Gentry as 2017 Associate of the Year

Adam Gentry, North American Tool's 2017 Associate of the Year

We proudly recognized Adam Gentry as the 2017 Associate of the Year during our Associate Recognition Steak Cookout on April 29, 2017. 

Adam is a long time associate of North American Tool.  He's a stand-up guy who accepts responsibilty and does not make excuses.  He has a joy of learning and wanting to help where help is needed.  He is thoughtful and self-deprecating. 

Tags: Adam Gentry, Associate of the Year

Who Knows What Kind of Trouble Lurks in the Darkness?

A "blind" hole is one that is drilled, bored, or cast to a specific depth without breaking through to the other side of the workpiece. Unless you are Superman, daylight will not be visible when looking into a blind hole.

If you search the Web for solutions to problems experienced while tapping blind-holes, you will find more suggestions than you can shake a tap at. Perhaps it's simpler to start with the basics, and formulate options from there.

Tags: blind hole, blind threading, forming tap

24 Hr Shipments, Right?

24 Hr Shipments, Right?

Do you ever wonder what's involved when you order a Special tap? What determines whether you are quoted 24-hours to manufacture, or 3 weeks?

Every company has developed processes for successful completion of the sale of goods or services. At North American Tool, our focus on quick delivery of special tools, in relatively small quantities, requires those processes to be efficient to the max. Customers today expect a quality product sold at a fair market price, delivered to them yesterday! The demands are the same no matter your place in the chain.

A significant percentage of orders can be satisfied by our inventory of “Popular Specials”. Those are non-industry standard tools that have shown a history of regular use by a wide range of customers. These products have EDP numbers, and are listed by size in our catalog, both printed and interactive on-line from our website. Depending on quantity ordered and available stock, those items are able to ship Same-Day.