267 / 306
CARBIDE BURRS
AND STEEL
BRUSHES
267
D1
D2
L2
L1
RECOMMENDED OPERATING SPEEDS
Maximum Operating
speed RPM
Burr head diameter/mm
3mm 6mm 10mm 12mm 16mm 20mm 25mm
Aluminium,
Plastics
Speed range
60-80
15-60
10-50
7-30
6-20
5-17
4-13
Recommended
“starting point”
65
40
25
20
15
10
8
Brass,
Copper,
Cast iron,
Bronze
Speed range
45-80
22,5-60
15-40
11-30
9-20
8-17
6-13
Recommended
“starting point”
65
45
30
25
20
12
10
Unhardened
Steels
Speed range
60-80
45-60
30-40
22,5-30
18-20
15-17
10-13
Recommended
“starting point”
80
50
30
25
20
15
10
Hardened
Steels,
S/Steels,
Nimonic
Alloys,
Titanium
Speed range
60-80
30-45
19-30
15-22,5
12-18
10-15
7,5-11
Recommended
“starting point”
80
40
25
20
15
10
8
Recommended speeds are for standard shank length of 45mm maximum overhang 10mm.
Maximum recommended speed for extra long burrs is 15000 RPM
DIMENSIONS & DESCRIPTION OF THE BURR
16,0
x
25,0
x
60L65
Cut style
and shape
Diameter
of the head
Length
of the head
Diameter of the shank and
overall Length of the burr (OL)
Shape
of the head
D1
L1
D2 + L2