The HD Fixture makes a great addition to your F1 Ultra's base. It is a designed to allow you to use any of the popular M6 based laser accessories, jigs, or other fixtures with the F1 Ultra.  
 
**The green base in the image represents the F1 Ultra's stock bed**
 
Specifications:
200mm x 225 mm
Only 8.5mm thick
304 M6 tapped holes on 12.5mm centers
221 Precision reamed 6mm holes on 12.5mm centers
Includes M4 mounting hardware
 
Optional Hardware Package includes:
4ea Dowel pins
2ea M6 x 10mm Thumbscrews (yellow)
2ea M6 x 12mm Thumbscrews (red)
4ea Half-Threaded dowels
4ea M6 x 10 screws
4ea M6 x 12 screws
 
 
Additional hardware and accessories are available in the store!