Packs of 6-Busch Fig. 1 Ball Burs 0.25mm-3.70mm Bur Size:3.10mm 742-4LC100 Polishing 4LC100 HP Micro-filer

742-4LC100 Polishing 4LC100 HP Micro-filer polishing handpiece with reciprocating stroke and 360° rotating head for controlled polishing in confined areas

it imprints decorative designs directly onto soft non-ferrous metals

Adjustable 3" (75mm) saw frame accommodates standard jeweler's saw blades

Hammer head cast in 420 stainless steel and hardened to 50Rc for long-lasting durability and performance

Double-ended design with a working point at each end

Packs of 6-Busch Fig. 1 Ball Burs 0.25mm-3.70mm Bur Size:3.10mm 742-4LC100 Polishing 4LC100 HP Micro-filerBusch Fig. 1 Ball Burs are the professional standard for jewelers who demand precision and consistency. Available in 35 sizes ranging from 0. 25 mm to 3. 70 mm, these ball burs are manufactured in tungsten vanadium steel to ultra precise tolerances, delivering reliable, clean cutting across a wide range of metalsmithing and jewelry fabrication tasks. Each size is sold in a pack of 6, making it easy to keep your bench stocked with the sizes you reach