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High-performance tungsten carbide burs, OMNI double cut, Oval bur – Shape E

Product information "High-performance tungsten carbide burs, OMNI double cut, Oval bur – Shape E"

Technical information

PFERD Carbide Bur SE-5 L6 Oval Shape OMNI Double Cut 1/2" x 7/8" x 1/4" Shank

Item number21728022
Dia. External1/2 Inch
Dia. shank1/4 Inch
EDP no.28022
Overall length6-3/4 Inch
CutOMNI
RPM, grey cast iron, white cast iron12000 - 24000 RPM
RPM, hard non-ferrous metals12000 - 16000 RPM
RPM, soft non-ferrous metals12000 - 20000 RPM
Packaging unit1 pieces

With the innovative OMNI cut, PFERD has developed unique burs for versatile use on key materials such as steel and cast steel, stainless steel (INOX), non-ferrous metals and cast iron. The OMNI cut offers all the benefits of the tried-and-tested double cut, but its stock removal rate is up to 30% higher for steel. It enables comfortable working with reduced vibration and less noise. The OMNI cut also offers significant time savings and a high economic value. Oval bur. Tungsten carbide burs with extended shanks are ideal for efficiently machining small, hard-to-reach areas. The shanks can be shortened if required. This bur has a long steel shank.


Special features

  • Significantly better stock removal rate than conventional double cut burs.
  • Saves time and money with very high stock removal rate on key materials.
  • Comfortable working due to reduced vibration and noise.
  • The highly accurate concentricity enables precise work free from chatter marks. This considerably reduces wear on the bur and power tool or machine.

Recommendations for use

  • Use the burs on powerful power tools with elastically mounted spindles to avoid unwanted vibration.
  • Observe the recommended rotational speed.
  • For the most cost-effective bur use, work with higher rotational/peripheral speeds. For burs with a 1/4" shank diameter, use power tools with a power output from 300 watts.

Safety notes

  • Very high speeds can cause discoloration on the shank. This does not constitute a safety risk.
  • For safety reasons, the maximum application speeds with contact with the workpiece require a reduction in the recommended speed of tungsten carbide burs with standard shanks. Observe the reduced speeds outlined in the product details.
  • When working with longer shanks, it is crucial that the bur is in contact with the workpiece (or inserted in the hole or slot to be machined) before the power tool is turned on. As a rule, the bur must remain in contact with the workpiece for as long as the machine is running. Failure to observe this procedure may result in shank failure (bending) and hence an increased risk of accidents. If continuous contact between the tool and the workpiece is not guaranteed during use, the maximum idling speeds must not be exceeded.

Workpiece materials

  • Annealed cast iron
  • Black annealed cast iron (GTS, GJMB)
  • Brass
  • Bronze
  • Case-hardened steels
  • Cast iron
  • Cast steel
  • Copper
  • Grey/nodular cast iron (GG/GJL, GGG/GJS)
  • Hard aluminium alloys
  • Hard non-ferrous metal
  • Hardened, heat-treated steels over 370 HV (38 HRC)
  • Soft non-ferrous metal
  • Stainless steel (INOX)
  • Steel
  • Steel materials with a hardness > 54 HRC
  • Steel, cast steel
  • Steels over 220 HV (> 95 HB)
  • Steels up to 220 HV (< 95 HB)
  • Steels up to 370 HV (< 38 HRC)
  • Titanium
  • Titanium alloys
  • Tool steels
  • White annealed cast iron (GTW, GJMW)
  • Zinc

Applications

  • Cutting out holes
  • Deburring
  • Leveling
  • Milling
  • Milling out
  • Surface work
  • Work on weld seams

Compatible power tools

  • Flexible shaft drive
  • Tool machine
  • Robot
  • Stationary machines
  • Straight grinder
Country of Origin: DE

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