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• These are not impact wrenches, even though they are air-powered and sound a bit similar. Instead they are powered ratchet wrenches, which turn by applying continuous torque, like a manual ratchet wrench. You can tell by the shape of the handle: a pistol grip like the impact wrenches have would twist your hand off, while this shape, stretching off to the side, gives you lots of leverage against the twisting force.

• I still have this drill decades later. It’s a good drill.

• This tool partly inspired this book. Decades ago I saw it in an issue of This Old House magazine, dreamed of having it, and finally got it. Then I dreamed of making a book with beautiful pictures of tools, just like those that had inspired me (except on a black background).

• This drill, like the one to the left, fits in quite small spaces, but it still puts the whole body of the drill behind the chuck.

• This drill compresses the chuck and gear assembly so much that the bottom of the chuck is in line with the bottom of the body, which is about as far as it makes sense to go.

• If you can’t justify buying a whole new right-angle drill, an adapter like this lets you use your ordinary drill in a new way.

Do you have a better example of this kind of tool? Let me know by leaving a comment, and include a picture of it if you can so everyone can see!