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Swiss Fig. 77B Cup Burs 4.00mm-10.00mm - Otto Frei
Otto Frei Swiss Burs

Swiss Fig. 77B Cup Burs 4.00mm-10.00mm

All 13 options in stock
Volume pricing-0%
$6.80to$20.60
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Bur Size: Choose a bur size
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1 – – –
2 – 3 5% off – –
4 – 11 7% off – –
12 + 10% off – –
Add 1 more for 5% off.

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Description

Fig. 77B cup burs round, shape, and smooth metal edges and prongs with precision control, refining contours into a clean and uniform finish. These large diameter Swiss Fig. 77B cup burs from Otto Frei Swiss Burs are made from tungsten vanadium steel in Switzerland, and the cup-shaped cutting head works precious metals with balanced, consistent performance.

Features

  • Fig. 77B cup bur profile for rounding and smoothing prongs and edges
  • Tungsten vanadium steel construction for strength and durability
  • Precision made to tight tolerances for consistent cutting performance
  • Large diameter sizes suited to heavier stock and bold settings
  • Preferred by many jewelers for everyday bench use
  • Sold individually

Available Options

Part # Bur Size
118.386 8.50 mm (0.335 in.)
118.387 9.00 mm (0.354 in.)
118.388 9.50 mm (0.374 in.)
118.389 10.00 mm (0.394 in.)
118.391 4.00 mm (0.157 in.)
118.392 4.50 mm (0.177 in.)
118.393 5.00 mm (0.197 in.)
118.394 5.50 mm (0.217 in.)
118.395 6.00 mm (0.236 in.)
118.396 6.50 mm (0.256 in.)
118.397 7.00 mm (0.276 in.)
118.398 7.50 mm (0.295 in.)
118.399 8.00 mm (0.315 in.)

Specifications

Brand
Otto Frei Swiss Burs
Part #
Varies by bur size
Type
Burs
Bur Type
Fig. 77B Cup
Material
Tungsten Vanadium Steel
Size Range
4.00 mm (0.157 in.) – 10.00 mm (0.394 in.)
Manufactured In
Switzerland
Sold As
Individually
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

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