Spearhead High Speed Steel Ball Bur Master Kit of 33 Pieces precious-metal-notice 863 14 Medium Rounding 121

863 14 Medium Rounding 121

Butane/Oxygen

NIOSH N95 and MSHA approved for reliable particulate filtration

Warmup Time: Typical initial warmup 15–30 minutes (metal-dependent)

240 – Bud Bur 0

Spearhead High Speed Steel Ball Bur Master Kit of 33 Pieces precious-metal-notice 863 14 Medium Rounding 121Important 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, 23 of the 33 sizes