Radius Marker, Medium, 50 in Circumference ORS NASCO Durable and high-performance|Universal holes fit

Durable and high-performance|Universal holes fit most manufacturer's head gear/cap adaptors|||

Fully insulated spring|Integral grooves|Integrated jaw pattern for multi-position electrode holding||

the extractor's grip increases|Extractor size and recommended drill bit size are etched on each tool|

no tool needed|Spare cutter wheel included in the knob|Made from high-strength zinc alloy

Grinding Arbor Thread - TPI or Pitch 5/8 in-11 UNC Nut Big Catalog YES Body Material Phenolic Backing Brand Weiler Catalog Welding Catalog Color Blue Construction Catalog NO Country of Origin MX Dia

Radius Marker, Medium, 50 in Circumference ORS NASCO Durable and high-performance|Universal holes fitPrecision tools made of rust proof aluminum and anodized for lasting protection The arms are precisely aligned with spring tension joints to guarantee accuracy and rigidity The holder accommodates flat or round soapstone and pencils All are a folding type design, the three smaller models will fit conveniently into a shirt pocket All have sturdy friction joints to maintain rigidity and accuracy