Busch Steel Burs - Ordering Information & Recommendations




The following speeds are for guidance only. Variations above or below these speeds according to manner of use and particular material may also be satisfactory. Always use safety glasses.

ISO No. Busch No. In the Dental Practice In the Dental Laboratory
Dentine Acrylics Metal/Hard Plastics
005—007 4/0—2/0     4,000—    9,000   70,000—100,000   63,000—  70,000
008—010 0—2     2,500—    5,000   60,000—  75,000   40,000—  60,000
012 + 014 3 + 4     1,800—    3,200   50,000—  80,000   27,000—  50,000
016 + 018 5 + 6     1,400—    2,400   40,000—  60,000   20,000—  40,000
021 + 023 7 + 8     1,100—    2,400   30,000—  45,000   15,000—  30,000
025 + 027 9 + 10        900—    1,500   25,000—  38,000   13,000—  25,000
029 + 031 11 + 12        800—    1,300   22,000—  33,000   11,000—  22,000
033 + 035 13 + 14     19,000—  29,000     9,700—  19,000
037 + 040 15 + 16     17,000—  26,000     8,600—  17,000
042 + 045 17 + 18     15,000—  23,000     7,600—  15,000
047 + 050 19 + 20     13,000—  20,000     6,800—  13,000
055 + 060 21 + 22     10,000—  17,000     5,700—  11,000
070 + 080 24 + 26       8,000—  14,000     4,000—    9,000
100 + 110 30 + 32       5,000—  10,000     2,900—    6,000
120 + 130 34 + 36       5,000—    8,000     2,700—    5,000
140 + 160 38 + 42       4,000—    7,000     2,000—    4,000


Table of Sizes




Printable Table of Sizes PDF - Scale to 100% when printing

Shank Types and Lengths


The available shank types are stated near the illustrations. The overall length may vary due to extra length head or neck. As all monitors vary, we regret that none of the images in our online catalog can be to scale. Please refer to the information listed with each illustration, or request our catalog by mail, which includes images to scale.

Abbr. Shank Diameter Length  
HP Handpiece Ø 2,35 mm 44,5 mm — 1.752 inch
RA X-LG Extra Long   26,0 mm — 1.043 inch
RA Right Angle Ø 2,35 mm 22,0 mm — 0.885 inch
FG   Ø 0,6 mm 19,0 mm — 0.748 inch

All rights to make technical changes reserved.