Spearhead High Speed Steel Bud Bur Master Kit of 23 Pieces Surface Treatments All carat weights are stated

All carat weights are stated in diamond weights

Optional accessories: Caster Kit AA037

Hole sizes range from 9 mm × 9 mm (smallest) to 12 mm × 12 mm (largest)

9 wire groove sizes ranging from 7mm down to 1mm

Spearhead High Speed Steel Bud Bur Master Kit of 23 Pieces Surface Treatments All carat weights are statedImportant 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, 15 of the 23 sizes