On/Off Magnetic Block for Burning Guides, Two Blocks, Fits up to 1/8 in Thick Standard Square or Straight Edge ORS NASCO compact design fits well under

compact design fits well under welding helmets and with safety glasses|Mask drops down for convenient storage around the neck or locks down for custom fit|Adjustable head cradle and curved neck buckles for extra comfort

swiveling round eye animal or spring snap

silicone or halogens|Protects against seizure

fast-curing

On/Off Magnetic Block for Burning Guides, Two Blocks, Fits up to 1/8 in Thick Standard Square or Straight Edge ORS NASCO compact design fits well underOn Off magnetic support blocks can be attached to any standard square or straight edge, up to 1 8 inch thick, to form your own burning guides Blocks are machined from aluminum and have grooves on three sides Included are set screws to easily adjust blocks on straight edges or squares Options available for one On Off magnetic block (MSB201) or two On Off magnetic blocks (MSB202)