Fibre-Metal Faceshield Headgear w/Ratchet F500 Fibre Metal Faceshield:Shade 5 4178IRUV5 4043 is a 5% silicon

4043 is a 5% silicon alloy used to weld heat treatable base alloys

8 Class BAg-7

The 100SG comes ready to feed

4 gallon coolant capacity

Fibre-Metal Faceshield Headgear w/Ratchet F500 Fibre Metal Faceshield:Shade 5 4178IRUV5 4043 is a 5% siliconFibre Metal Roughneck Faceshield Headgear w Ratchet F500 The Fibre Metal F500 Faceshield Headgear with ratchet adjustment has broader, deeper 7" crown protector and wide wraparound window which provides an extra margin of protection when harsh working conditions require it. Made from Noryl, the same material used in Fibre Metal welding helmets, High Performance faceshields are stronger, more durable and more heat resistant than ordinary faceshields.