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High Speed Steel Ball Burs Size 2 (1.2mm) Round
High Speed Steel Ball Burs Size 2 (1.2mm) Round
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Spanish Name: FRESAS DE ALTA VELOCIDAD, TAMAÑO 2 Redondo


Product Code: B260-2
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Description Technical Specs
 

The High Speed Steel Ball Burs Size 2 (1.2mm) Round is a precision-crafted cutting tool engineered for professional jewelry applications requiring accuracy, control, and clean detailing. Manufactured from premium high-speed steel (HSS), this bur offers enhanced hardness, long-lasting sharpness, and consistent performance across various jewelry metals.

The 1.2mm round head delivers accurate spherical shaping, making it ideal for stone-seat preparation, prong interior finishing, drilling rounded recesses, and refining curved surfaces. Its precise cutting geometry ensures smooth metal removal with minimal heat generation, protecting delicate jewelry components while producing superior finish quality. This makes it an essential tool for stone setters, bench jewelers, and fine jewelry manufacturers.

Equipped with precision spiral-cut flutes, the bur provides stable rotation, reduced vibration, and efficient chip clearance during high-speed use. The 3/32" (2.35mm) standard shank ensures full compatibility with professional micromotors, rotary handpieces, and flex shafts commonly used in jewelry workshops.

Designed for daily bench work, this HSS ball bur maintains exceptional cutting efficiency on gold, silver, platinum, brass, and mixed alloys. Its durable steel construction reduces the need for frequent replacements and supports high-precision craftsmanship in advanced jewelry fabrication.

The High Speed Steel Ball Burs Size 2 (1.2mm) Round delivers the ideal balance of precision, durability, and smooth cutting action — a must-have for jewelers who demand exceptional performance and long-term reliability.

Key Benefits

  • 1.2mm precision round head for clean, accurate shaping

  • High-speed steel durability for long-lasting sharpness

  • Smooth, efficient cutting with minimal heat

  • Ideal for stone setting and detailed bench work

  • Consistent performance for professional jewelers

Features
  • 1.2mm precision round head designed for accurate stone-seat shaping and detailed carving.

  • High-speed steel construction ensures exceptional durability and cutting efficiency.

  • Spiral-cut flutes deliver smooth metal removal and reduced heat buildup.

  • Standard 3/32" shank provides full compatibility with professional jewelry handpieces.

  • Perfect for stone setting, undercutting, detailing, and micro-carving tasks.

  • Clean, stable cutting performance suitable for gold, silver, platinum, and similar metals.

High Speed Bur Size Convertion Chart
SIZE MM IN/PUL. SIZE MM IN/PUL.
1 1.05 0.035 18 4.5 0.177
2 1.2 0.043 19 4.7 0.185
3 1.35 0.051 20 5 0.197
4 1.5 0.059 22 5.2 0.204
5 1.7 0.067 23 5.4 0.212
6 1.9 0.075 24 5.6 0.22
7 2.1 0.083 25 5.9 0.232
8 2.3 0.09 26 6.3 0.248
9 2.5 0.098 27 6.7 0.263
10 2.7 0.106 28 7.2 0.283
11 2.9 0.114 29 7.6 0.299
12 3.1 0.122 30 8 0.314
13 3.3 0.13 31 8.9 0.35
14 3.5 0.138 32 9.6 0.377
15 3.8 0.149 33 10.4 0.409
16 4 0.157 34 11 0.437
17 4.3 0.169

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