Surgical Length – Extra Long | FG-XL 25 mm & RA-XL 34 mm Burs

Extra-long surgical burs — Busch’s FG-XL (25 mm overall) and RA-XL (34 mm overall) shanks — deliver maximum reach for oral surgery, third molar sectioning, subgingival and furcation work, and deep preparations where standard and 21/26 mm lengths fall short. The collection includes surgical-length rounds and fissures and the extra-long ZIRAMANT zirconia diamonds.

Extra length trades some rigidity for reach, so run these at moderate speeds with a light touch — the slender profiles reward finesse over force. For routine posterior reach, the 21 & 26 mm collection may be all you need.

FAQ

What is a 25 mm surgical bur used for? Sectioning impacted third molars, removing bone with visibility, and reaching deep or subgingival sites — the classic American “surgical length FG” is this 25 mm format.

21/26 mm or 25/34 mm? Choose the shorter surgical lengths for routine posterior reach; step up to 25/34 mm when surgical depth demands maximum working length.

Do these fit standard handpieces? Yes — the chuck-held portion is standard; the additional length is all exposed shank.

Where are these instruments made? Every instrument in this collection is manufactured by Busch & Co. in Engelskirchen, Germany — an ISO 13485-certified specialist in rotary precision instruments since 1905 — and ships fast from our US warehouse.

Reference resources: Bur Comparison Chart · Speed Chart · Glossary