The 8" Mitutoyo digital caliper is the workhorse in our shop. 

Small and lightweight; ideal as mobile surface roughness measuring instruments with Increased flexibility with the removable drive unit

When my other chip fan exploded, I replaced it with this one.  The Redline Turbo is way better than the fan it replaced.  It has a steel shank and coolant passage which is useful for blasting chips out of deep holes using through spindle coolant. 

Loctite 380 is the best alternative to epoxy for permanently installing magnets in 3d prints. 

Mitutoyo's fast and reliable micrometer is an absolute treat to use. 

We found the Bondhus T-handle Allen and Torx keys to be better than the competition.  We keep a set at the assembly station and at each CNC Machine. 

Add one of these screen protectors to the inside of your CNC machine so you can cut through the coolant and see what's going on.  The oleophobic coating sheds coolant increasing visibility when machining with coolant.

I was going to modify some cereal containers but found these awesome dry boxes instead.  These are tough, seal well, and the included hydrometer with desiccant storage is a great feature.

This tool has changed how we level machines.  It links to your phone via Bluetooth which allows you to have the level indication in sight while adjusting leveling feet. Game changer!

The magnet base and spring retention on these key holders make them one of my favorite tools.  I keep a set at each machine in the shop. 

Useful in 3d prints like our sticker dispenser as well as generally useful around the machine shop. We use Locktite 380 to mount these in our 3d prints.