Description
This high speed steel round (ball) rotary file is ground from solid stock for grinding at low to medium speeds in flexshaft machines and drill presses. 1⁄4” diameter head and 1⁄8” shank.
Bur Basics
Round Burs are useful for de-burring or enlarging holes, carving recesses for sweat soldering, and refining stone settings. Because of their shape they can be used at any angle.
High Speed Steel (HSS) burs strike a balance between cost and durability. They maintain their hardness (temper) better than vanadium steel and cost less than carbide steel.
1⁄8” dia. shanks are larger than the standard 3⁄32” tools most used by jewelers. These larger tools fit most adjustable chucks but will not fit most quick-change handpieces.
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