RUBI | Easy Gres Drill Bit Sets 7/32" and 3/8" (6 and 10 mm.) | Electroplated Diamond Drills for Use with Electric Drill Without Hammer | Attaches Easily to any Surface :
Rubi 04922 Diamond drill bit EASY GRES 6 mm NAT
Rubi EASYGRES Plus Drill Bit Kit 51919 | Contractors Direct