Spearhead High Speed Steel 90 Degree Bearing Bur Master Kit of 33 Pieces Buffs Open bottom allows placement directly

Open bottom allows placement directly over suction access points as used on Quatro SPU units

forward & reverse Roller Length 130 mm Roller Diameter 65 mm Roller Type Combination — full 130 mm flat + 130 mm wire Sheet Thickness Capacity 6 mm Wire Grooves 19 square sizes

efficient workspace for engravers and stonesetting professionals

covering a broad range of carving profiles

Spearhead High Speed Steel 90 Degree Bearing Bur Master Kit of 33 Pieces Buffs Open bottom allows placement directlyImportant 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