The book has been extremely useful during my current project

Everything is there, it's easy to read and find the information I need. The 'treated' pages are great, in case of dirty hands. It's a very valuable addition to my workshop. The information on 'Coolant and Lubricants for various metals is an amazing aid, whenever I need it.

Can't come up with anything negative.

Easy to find data, information beyond basics and all in a portable package that can sit in the top of my work toolchest for ease of access.

convenient, concise, this book is a lifesaver.

That I waited so long to acquire one.

This little book is never far from me, fits in my shop apron pocket. Very useful and informative. I am new to running lathes and mills so I have much to learn. I truly appreciate the layout of the book and the index. "Handy" does not do the book justice, for me it is essential.

Answers to questions I did not know to ask. Very logically constructed and assembled. Drill point sharpening gauge very useful as well as the handy pocket in the book (I can find it). Size is just for keeping close.

None

What a great product, love the grease proof pages as my workshop manuals have all got oily pages.
Love the drill guide so handy.

None that I can think of.

Pages are protected from the dirty shop environment, and tear proof.
All information is accurate, and quicker than going for the “big book”.

Matt Lamination prohibits tears & grease

I wish this was available in an App!

Great referance book in use daily since it arrived very helpful

Handy to have all this info nearby at all times

A little small and the spring binding could be a bit larger in diameter, would make it easy to lay flat to read with out holding the last several pages down.

I waited way to long to buy this book. It really is a must have for any mancave.

Has so much information in such a small size.

nothing

It would be very beneficial to add a section on Cogg Gears and drives calculations.

Has everything I need in one spot. Great for basic stuff like conversions and basic geometry that I can't remember from high school. Also learned quite a bit about carbide insert nomenclature.

A lot of useful information in a tough, small package.

Could use color coded page edges for easy locating of contents.

I do not believe that there is anything in the book that I don't have access to elsewhere. This is, however, the first synopsis that I have come upon which appears to contain all of the reference data that I am likely to need without noise or omission.

Small, portable, complete, easy to access and it is resistant to oil stains.

I only wish that I had found this small book many years ago.

I’m learning to use a small lathe and a small milling machine. I have been viewing YouTube to learn and everyone I see has or uses the Black Book.
I now own one and wow its full of great information.

All the math is put in easy to understand format.
There are lots and lots of very useful charts and cross reference material.

None yet 👍🏻

Verry usefull book!

A great collection of the bits of information you struggle with, until you have absorbed them without really knowing how or when. I read it from cover to cover to fill in the many cracks in my knowledge. Obviously I won’t remember it all, BUT I will know where to go to look things up

It’s all good stuff, the book is small and can be taken anywhere

I have to remember to take my glasses, but that,s reslly a con against my eye sight.

Ever since I've purchased this book Ive never not taken it to work, as a sheety it helps me tons with formulas and things you naturally forget over time!

Grease proof, glare proof and pocket sized. Never go to work with it

Can't deny it has no cons

Brilliant little book very handy, everyone should have one.

Really informative

Nothing

Very helpful for checking lots of data.

The paper it is printed on is heavy duty and grease resistant!

Nothing.

Contains everything you need.

Very easy to read and find the info I need quickly. Made of good materials. Easy to clean.

None

This book is simple and straight forward. Gives you the information you need and is super easy to find!

Great quality pages, straight forward, and so much information!

Nothing

Great book. Have it close by all the time.

Material of the book feel like quality.

Nothing really

I am mostly a self taught machinist. The black book has a wealth of explanations and easy to understand information. I am not sure how I got along without it.

clear print and excellent drawings