Ottotech by EVE Germany Airflex Cool Running Large Conforming Wheels Grit:Fine - Brown Only 8–9% shrinkage after firing

Only 8–9% shrinkage after firing

0mm 4B-173 Platinum

and are cut on the edges only

4 mm Half-Round Groove Count 7 grooves Half-Round Groove Range 1

Special-order shapes and sizes are also available—contact Otto Frei for more information

Ottotech by EVE Germany Airflex Cool Running Large Conforming Wheels Grit:Fine - Brown Only 8–9% shrinkage after firingAirflex wheels are engineered with a special material containing thousands of miniature air pockets throughout the wheel body. This unique construction dissipates heat generated by friction, keeping temperatures low during use so the wheel lasts longer and won't burn the metal being worked on. The Medium Green wheel is particularly well regarded for pre polishing platinum. Renowned goldsmith and instructor Doug Zaruba has praised it for saving time in