3" Fire Check Block For Essential Hinge Jig

Fire check block for the use for fitting fire doors when an additional hinge is required 100mm from the top hinge. 

Colour coded Red for 3” inch 

1 x fire check block for 3 inch hinges. 

Please note:

You will need a guide bush that is 4mm larger than your cutter, not made for router bits with a bearing. So if using a 12mm, then 16mm would be required. If using a 12.7mm you would need a 16.7mm. 

* Orders placed from the 7th of November 2023 will already receive these Thumbscrews with your Essential Hinge Jig.