Spearhead High Speed Steel Setting Bur Master Set of 33 Pieces Durston Black Friday 4 mm) snap-on mandrels

4 mm) snap-on mandrels

Ideal for high-volume sizing shops and ring fabrication work

For white gold and platinum

424 4 mm x 20 mm Rectangle What's Included

Thermostatically Controlled VARI-TEMP Heater — Adjustable heat settings to suit your cleaning requirements

Spearhead High Speed Steel Setting Bur Master Set of 33 Pieces Durston Black Friday 4 mm) snap-on mandrelsImportant Notice Regarding This Set: If you order this set, it will not arrive complete. Spearhead has been unable to supply all sizes in this master set, and Otto Frei does not have confirmed ship dates on open back orders. Orders for this set will be fulfilled as a partial set only, at a reduced price, based on sizes in stock at the time of your order. For example, as of 2 7 2025, only 17 of the 33 sizes were available the count may be higher or