HP Burs | Straight Handpiece & Laboratory

The laboratory backbone: Busch’s HP (straight handpiece) instruments on the 2.35 mm plain shank — carbide cutters in every cut from SGX to FFX, steel burs, diamonds, abrasives, polishers, and mandrels for dental technicians and slow-speed clinical use.

From wet plaster to titanium, the HP range covers every laboratory material — consult the speed chart below for the recommended RPM by cut type.

FAQ

What does HP mean on a bur? Handpiece — the 2.35 mm plain straight shank for laboratory and slow-speed straight handpieces; Busch lab designations HST and PM use the same format.

Are HP and RA shanks interchangeable? Both are 2.35 mm, but RA adds a latch groove; HP instruments seat in straight handpiece chucks and most will also run in latch handpieces, while FG will fit neither.

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 · Color Coding & ISO Guide · Glossary