Secret Compartment key ring kit blue titanium

Secret Compartment key ring kit. Uses drill 27/64, pen mill shaft 27/64, mandrel A/7 mm and bushing 98A (sold separately). Tube length 74 mm. 

Tip: for easy removal of your bills from the secret compartment, roll the bill tightly and apply a small piece of tape before putting the bill into the secret compartment. This will keep the bill from unrolling inside, making it easy to pull out again when you need it.

Shown here with DiamondCast pen blank "Midnight Skies" (blank not included - see "Related Products" tab for link).

Click here for assembly instructions

Price per kit in Canadian dollars.

Mix and match with other project kits for volume pricing where available!