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ToolGuyd > Tool Science 101
Ridgid R86116 Black Friday 2018 Cordless Drill Speed Selector Switch and Side Handle Attachment

Drills & Drivers

Why High-Torque Cordless Drills Come with a Side Handle

Jul 31, 2023 Stuart 23 Comments

Let’s talk about side handles.

Anvil Tape Measure Markings with Calipers Check

Precision Tools

A Mil is Not a Millimeter

Jul 14, 2023 Stuart 94 Comments

Let’s talk about mils!

Milwaukee Tool Cordless Drill Comparison 2023

Tool Science 101

How to Read a 2-Axis Bar Graph

Jul 7, 2023 Stuart 30 Comments

Hopefully this will get everyone on the same page.

Dewalt PowerStack 5Ah Battery

Batteries

Comparing Power Tool Battery Specs – Watt-Hours vs Amp-Hours

Apr 26, 2023 Stuart 39 Comments

Tool users need to start thinking in terms of watt-hours, not amp-hours.

Dewalt 20V 10Ah vs FlexVolt 9Ah Batteries

Cordless

Dewalt 20V Max 10Ah vs. FlexVolt 9Ah Batteries

Oct 7, 2021 Stuart 37 Comments

Here’s a long explanation of how two Dewalt batteries theoretically compare.

Dewalt Milwaukee Cordless Power Tool Battery April Fools 2019

Cordless

Where Will Cordless Power Tools go Next?

Aug 6, 2021 Stuart 67 Comments

Cordless power tools have seen a lot of upgrades over the years – what comes next?

Milwaukee 25-foot Stud Tape Measure Features

Editorial

Deciphering Dewalt and Milwaukee Tape Measure Drop Rating Claims

Jul 11, 2021 Stuart 20 Comments

A reader’s comment has me thinking about tape measure drop ratings.

Makita XGT 40V Max Cordless Power Tool Battery 2-5Ah

Cordless

Makita XGT 40V Max Battery Tech Explained

Apr 1, 2021 Stuart 22 Comments

Let’s do a deep-dive into how Makita can have a 40V Max battery in an 18V form factor.

Stiletto TiBone 3 Titanium Hammer Nail-Starting Closeup

Editorial

Let’s Talk About Modern High Velocity Hammers

Jan 7, 2021 Stuart 99 Comments

Why are lighter high performance hammers claimed to be as hard-hitting as heavier hammers?

Dewalt 20V Max Impact Driver Motor

Cordless

Dewalt Cordless Power Tools, UWO, and Torque – Here’s What it all Really Means

Apr 13, 2019 Stuart 87 Comments

I have been avoiding this for a while, but here’s a long take at Dewalt’s UWO and what it means.

Vacuum Hose Size Comparison

Editorial

Vacuum Hose Size Comparison

Aug 8, 2018 Stuart 26 Comments

When comparing vacuum hose sizes, did you know that a 2-1/2″ hose has 4X the cross section compared to a 1-1/4″ hose?

Milwaukee Packout with melted Kaizen foam

Editorial

Why Clear-Lidded Organizers Shouldn’t be Left in the Sun

Jul 20, 2018 Benjamen 51 Comments

Follow down the rabbit hole as Ben and Stuart investigate reports of Kaizen foam melting in clear-lidded tool boxes.

Bosch ProCore 18V 7Ah Battery Pack

Cordless

Revisiting What an Amp-Hour Means for Cordless Power Tool Batteries

Mar 2, 2018 Stuart 43 Comments

So, you want to know more about cordless power tool battery packs?

Milwaukee M18 TrueView LED Lantern Beam Pattern

Cordless

Milwaukee LED “TRUEVIEW” Technology Explained

Oct 3, 2014 Stuart 8 Comments

Here’s a look at some of the technical figures behind Milwaukee’s TRUEVIEW LED claims.

Milwaukee Scissors Iron Carbide Edge

Tool Science 101

Milwaukee “Iron Carbide” Cutting Tools – What Does This Mean?

Jul 3, 2014 Stuart 9 Comments

So what’s the deal with the “iron carbide” cutting edges on Milwaukee’s new heavy duty scissors?

Wright WrightGrip Anti Slip Wrench Design

Mechanics' Tools

This Why Anti-Slip Wrenches are Awesome

Feb 6, 2014 Stuart 19 Comments

We came across a video review that does a great job of demonstrating the effectiveness of anti-slip wrenches.

UL Requirement for Max Power Cordless Drill Handles

Cordless

Why Powerful Drills MUST Have Auxiliary Handles

Jan 31, 2014 Stuart 19 Comments

We took a detailed look at why more powerful drills must come with auxiliary handles.

Dewalt 12V Max Battery Pack

Cordless

Power Tool Brands Don’t Make Their Own Batteries

Jan 29, 2014 Stuart 48 Comments

Here are a few thoughts about cordless power tool battery packs.

Energizer L91 Lithium Battery Capacity Temperature Curve

EDC, Pocket, & Multitools

Which Batteries for Flashlights and Tools in Cold Weather

Jan 28, 2014 Stuart 12 Comments

If you plan to use a flashlight or battery-powered device outside in the winter, you will probably want to power it with lithium batteries.

Maxxeon LED Worklight Beam Uniformity

Flashlights & Worklights

What is a Lumen, What is Lux, and More LED Flashlight Technical Mumbo Jumbo

Jan 10, 2014 Stuart 36 Comments

Have you ever wondered what a lumen was? We covered that and more.

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