Forney 55767 1.0 Diopter Magnifying Lens, Plastic Hearing Protection It has a diameter of

It has a diameter of 0

Used to produce a radius at the edge of a concrete slab to help prevent the edge from chipping off

Bleed hoses when not in use for at least 30 mins

Melting temperature rating of 421 deg F (216 deg C)

Forney 55767 1.0 Diopter Magnifying Lens, Plastic Hearing Protection It has a diameter ofForney 1. 0 Diopter Magnifying Lens, Dimensions: 4 1 4 in L x 2 in W, Plastic, Suitable for: Forney Easy Weld Series 55731, 55732, Forney Series 55857, 55858, 55859, 55860, 55861, 55862, Forney PRO Series 55935, 55936, 55937, 55938, 55939 Auto Darkening ADF Welding Helmet Unit: EA UPC: 032277557673 Model Number: 55767