Description
Set of 12 Helvetica vanadium steel hart (bearing cutter), 0.9 mm to 2.3 mm in diameter. Provided in a plastic stand with a clear cover. Made in Switzerland. 3⁄32” shanks.
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Description |
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set of 12, 0.9 mm to 2.3 mm |
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Bur Basics
Hart (Bearing Cutter) Burs are used to cut seats in prongs, flush settings, & channels. They are available with 45°, 70° or 90° cutting angles. They can also be used for bright cutting.
Vanadium Steel burs are economically priced. They cut precisely when new, but don’t retain their sharpness as long as other steel alloys.
3/32″ dia. shanks are the jeweler’s preferred standard for burs and small rotary tools. They fit the adjustable chucks found on most flexshaft handpieces as well as 3/32″ handpiece collets.
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