Which Pear Bur Do You Need?
Pick the material and shank first, then the Busch number; every active product in the collection is linked once below, and the ISO head size is the last three digits of each Busch number.
Carbide pear burs, US 330–333 and long 331L–333L (FG)7 items
| Busch No. |
US No. |
Pattern or size |
| 7 008 |
330 |
ISO size 008 · pear (excavating and fissure) · FG · pack of 6 |
| 7 010 |
331 |
ISO size 010 · pear (excavating and fissure) · FG · pack of 6 |
| 7 012 |
332 |
ISO size 012 · pear (excavating and fissure) · FG · pack of 6 |
| 7 014 |
333 |
ISO size 014 · pear (excavating and fissure) · FG · pack of 6 |
| 25R 010 |
331L |
ISO size 010 · long pear (inverted cone round) · FG · pack of 6 |
| 25R 012 |
332L |
ISO size 012 · long pear (inverted cone round) · FG · pack of 6 |
| 25R 014 |
333L |
ISO size 014 · long pear (inverted cone round) · FG · pack of 6 |
Carbide finishing pear burs, US 7303 and 7304 (FG)2 items
| Busch No. |
US No. |
Pattern or size |
| 47L 012 |
7303 |
ISO size 012 · carbide finishing pear · FG · pack of 2 |
| 47L 014 |
7304 |
ISO size 014 · carbide finishing pear · FG · pack of 2 |
Diamond pear burs, figure 830 (FG)11 items
| Busch No. |
Pattern or size |
| 6830 010 |
ISO size 010 · coarse grit, green ring · FG · pack of 6 |
| 6830 012 |
ISO size 012 · coarse grit, green ring · FG · pack of 6 |
| 6830 014 |
ISO size 014 · coarse grit, green ring · FG · pack of 6 |
| 6830 016 |
ISO size 016 · coarse grit, green ring · FG · pack of 6 |
| 830 009 |
ISO size 009 · medium grit · FG · pack of 6 |
| 830 010 |
ISO size 010 · medium grit · FG · pack of 6 |
| 830 012 |
ISO size 012 · medium grit · FG · pack of 6 |
| 830 014 |
ISO size 014 · medium grit · FG · pack of 6 |
| 830 016 |
ISO size 016 · medium grit · FG · pack of 6 |
| 8830 012 |
ISO size 012 · fine grit, red ring · FG · pack of 2 |
| 8830 014 |
ISO size 014 · fine grit, red ring · FG · pack of 2 |
Diamond pear burs, figure 831 (FG)12 items
| Busch No. |
Pattern or size |
| 5831 014 |
ISO size 014 · super coarse grit, black ring · FG · pack of 6 |
| 6831 012 |
ISO size 012 · coarse grit, green ring · FG · pack of 6 |
| 6831 014 |
ISO size 014 · coarse grit, green ring · FG · pack of 6 |
| 6831 016 |
ISO size 016 · coarse grit, green ring · FG · pack of 6 |
| 6831 018 |
ISO size 018 · coarse grit, green ring · FG · pack of 6 |
| 831 010 |
ISO size 010 · medium grit · FG · pack of 6 |
| 831 012 |
ISO size 012 · medium grit · FG · pack of 6 |
| 831 014 |
ISO size 014 · medium grit · FG · pack of 6 |
| 831 016 |
ISO size 016 · medium grit · FG · pack of 6 |
| 831 018 |
ISO size 018 · medium grit · FG · pack of 6 |
| 8831 012 |
ISO size 012 · fine grit, red ring · FG · pack of 2 |
| 8831 014 |
ISO size 014 · fine grit, red ring · FG · pack of 2 |
Diamond pear burs, figure 831R (FG)10 items
| Busch No. |
Pattern or size |
| 6831R 012 |
ISO size 012 · coarse grit, green ring · FG · pack of 6 |
| 6831R 014 |
ISO size 014 · coarse grit, green ring · FG · pack of 6 |
| 6831R 016 |
ISO size 016 · coarse grit, green ring · FG · pack of 6 |
| 6831R 018 |
ISO size 018 · coarse grit, green ring · FG · pack of 6 |
| 831R 012 |
ISO size 012 · medium grit · FG · pack of 6 |
| 831R 014 |
ISO size 014 · medium grit · FG · pack of 6 |
| 831R 016 |
ISO size 016 · medium grit · FG · pack of 6 |
| 831R 018 |
ISO size 018 · medium grit · FG · pack of 6 |
| 8831R 012 |
ISO size 012 · fine grit, red ring · FG · pack of 2 |
| 8831R 016 |
ISO size 016 · fine grit, red ring · FG · pack of 2 |
Micro Prep diamond pear burs (FG)4 items
| Busch No. |
Pattern or size |
| MI 830 009 |
ISO size 009 · medium grit · Micro Prep · FG · pack of 6 |
| MI 830 012 |
ISO size 012 · medium grit · Micro Prep · FG · pack of 6 |
| MI 8830 009 |
ISO size 009 · fine grit, red ring · Micro Prep · FG · pack of 2 |
| MI 8830 012 |
ISO size 012 · fine grit, red ring · Micro Prep · FG · pack of 2 |
Cool-Diamant pear burs (FG)9 items
| Busch No. |
Pattern or size |
| CD 18 012 |
ISO size 012 · Cool-Diamant · FG · pack of 6 |
| CD 18 014 |
ISO size 014 · Cool-Diamant · FG · pack of 6 |
| CD 18 016 |
ISO size 016 · Cool-Diamant · FG · pack of 6 |
| CD 18G 012 |
ISO size 012 · coarse grit · Cool-Diamant · FG · pack of 6 |
| CD 19 014 |
ISO size 014 · Cool-Diamant · FG · pack of 6 |
| CD 19 016 |
ISO size 016 · Cool-Diamant · FG · pack of 6 |
| CD 19 018 |
ISO size 018 · Cool-Diamant · FG · pack of 6 |
| CD 19G 014 |
ISO size 014 · coarse grit · Cool-Diamant · FG · pack of 6 |
| CD 19G 016 |
ISO size 016 · coarse grit · Cool-Diamant · FG · pack of 6 |
Laboratory pear cutters, diamonds and abrasives (HP)13 items
| Busch No. |
Pattern or size |
| 427 060 |
size 060 · carbide pear cutter · HP · pack of 1 |
| 427FX 029 |
size 029 · carbide pear cutter · fine crosscut · HP · pack of 1 |
| 427FX 060 |
size 060 · carbide pear cutter · fine crosscut · HP · pack of 1 |
| 427X 029 |
size 029 · carbide pear cutter · crosscut · HP · pack of 1 |
| 427X 060 |
size 060 · carbide pear cutter · crosscut · HP · pack of 1 |
| S 427FFX 023 |
size 023 · SHORTIE carbide pear bur · HP · pack of 2 |
| S 427FX 023 |
size 023 · SHORTIE carbide pear bur · HP · pack of 2 |
| S 427MQS 023 |
size 023 · SHORTIE carbide pear bur · HP · pack of 2 |
| S 427X 023 |
size 023 · SHORTIE carbide pear bur · HP · pack of 2 |
| 77 060 |
size 060 · steel pear cutter · HP · pack of 6 |
| 77 070 |
size 070 · steel pear cutter · HP · pack of 6 |
| 830 070 |
size 070 · diamond pear bur · medium grit · HP · pack of 1 |
| 677 050 |
size 050 · pear abrasive · pink · HP · pack of 6 |
Pear Bur Numbers: 330–333 and L Sizes
The US pear bur numbers 330, 331, 332 and 333 are the Busch figure 7 carbide pear in ISO sizes 008 to 014; the long 331L, 332L and 333L patterns are Busch figure 25R in the same three larger sizes. All are FG shank carbide burs for cavity and fissure preparation.
The diamond, Cool-Diamant, Micro Prep, Shorties and HP pear cutters in this collection carry Busch figure numbers only, with the ISO head size shown in each product title.
Clinical Use
The FG carbide and diamond pears are used for conservative cavity access and preparation, opening minimal-extension amalgam and composite preparations with rounded internal line angles; the 330 is the classic minimally invasive access bur and the 47L carbide pears are finishing burs. The HP carbide, SHORTIE, steel, diamond and abrasive pear instruments belong to the Busch prosthesis (laboratory) range for the straight handpiece.
Care and Reconditioning
Clean, disinfect and sterilize carbide, diamond and steel burs between uses following the manufacturer instructions, and replace a bur once it dulls or shows damage. Our Dental Bur Reprocessing & Sterilization Guide covers the workflow for Busch rotary instruments; maximum speeds are in the Dental Bur Speed Chart.
Compare With
Related Busch collections: US No. 330 Bur, 830 Pear Diamond Bur, 831 Pear Diamond Bur, 831R Pear Diamond Bur, MicroPrep Diamond Bur Collection, and Inverted Cone Burs. For numbering and sizes, see the US Bur Number Finder and the Busch Bur Size Chart.
Reference resources: Bur Comparison Chart · Speed Chart · Color Coding & ISO Guide · Glossary
FAQ
What is a 330 bur?
The US No. 330 pear bur (Busch figure 7, size 008) — the classic conservative cavity access and preparation instrument.
Pear vs. round bur?
The pear’s dome end and tapered sides cut a self-retentive, rounded-line-angle preparation in one shape; rounds excavate more freely in all directions.
Where are these burs 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.
Further reading: The #330 Pear Bur: Why This Compact Carbide Is a Restorative Workhorse