Spearhead High Speed Steel 90 Degree Bearing Bur Master Kit of 33 Pieces Thomas Mann Designed as a direct replacement

Designed as a direct replacement for the Quatro Jet Stream JS-1201

71 mm Pack Length 60" (5 ft

821 Technical Borax Flux 1 lb 122

Use refractive index liquid between the stone and prism to ensure proper optical contact

Spearhead High Speed Steel 90 Degree Bearing Bur Master Kit of 33 Pieces Thomas Mann Designed as a direct replacementImportant Notice: This set will ship incomplete. Due to ongoing supply constraints, Spearhead has been unable to fulfill all sizes in this kit as ordered. Otto Frei will contact you with the exact burs in stock, the sizes unavailable, and an updated reduced kit price at the time of your order. We are not back ordering missing sizes, as restocking timelines are unknown and inventory returns randomly. For reference, as of 7 29 2026, 25 of the 33 sizes