Tungsten carbide burrs for general use, cut 1, conical shape with radius end KEL

Tungsten carbide burr tree shape with radius end KEL dia. 12x30 mm shank dia. 6 mm Z1 universal coarse

Item number: 21125216
EAN: 4007220048627
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Technical information

Tungsten carbide burr tree shape with radius end KEL dia. 12x30 mm shank dia. 6 mm Z1 universal coarse

14 °
Dia. external
12 mm
Dia. external [inch]
15 /32 Inch
Dia. shank
6 mm
Dia. shank [inch]
6 mm
Length, cut
30 mm
Length, total
70 mm
Length, total [inch]
2.3 /4 Inch
RPM from, grey cast iron, white cast iron
16000 RPM
RPM from, rust and acid-resistant steels
7000 RPM
RPM from, soft non-ferrous metals
16000 RPM
RPM from, steels up to 1,200 N/mm²
16000 RPM
RPM to, grey cast iron, white cast iron
24000 RPM
RPM to, rust and acid-resistant steels
12000 RPM
RPM to, soft non-ferrous metals
24000 RPM
RPM to, steels up to 1,200 N/mm²
24000 RPM
2.6 mm
Packaging unit
1 piece

Cut 1 is especially well-suited to machining of non-ferrous metals, steel and cast iron. It is characterized by its high stock removal rate.

Tungsten carbide burrs for general applications are suitable for fine and coarse stock removal on the key materials used in industrial manufacturing. They provide a good stock removal rate and are not specific to a particular material.

Conical burr with round radius end according to DIN 8032 with cut conforming to DIN 8033.

  • Good stock removal rate through optimum matching of tungsten carbide, geometry, cut and available coating.
  • Long tool life.
  • The highly accurate concentricity enables impact­free working without creating chatter marks. This considerably reduces wear on the tool and tool drive.
  • High surface quality.
Recommendations for use
  • To prevent vibrations, place the tools on powerful drives with an elastically supported spindle wherever possible.
  • Observe the recommended rotational speeds.
  • If the smallest area of the burr diameter is being used, the recommended rotational speed can be increased accordingly.
  • To ensure cost­effective use of burrs, use a higher rotational speed and cutting speed. Use burrs with a shank diameter of 6 mm with drives with a power output from 300 watts.
Materials that can be worked
Annealed cast iron
Black annealed cast iron (GTS, GJMB)
Case-hardened steels
Cast iron
Cast steel
Grey/nodular cast iron (GG/GJL, GGG/GJS)
Hardened, heat-treated steels over 1.200 N/mm² (< 38 HRC)
Soft aluminium alloys
Soft non-ferrous metal
Stainless steel (INOX)
Steel, cast steel
Steels over 700 N/mm² (> 220 HB)
Steels up to 1,200 N/mm² (< 38 HRC)
Steels up to 700 N/mm² (< 220 HB)
Tool steels
White annealed cast iron (GTW, GJMW)
Cutting out holes
Milling out
Surface work
Work on weld seams
Drive types
Flexible shaft drive
Stationary machines
Straight grinder
Tool machine
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