Advantage 4 1/2 x 7/8 Zirconia Flap Wheels 60 Grit 10 Pack Saw Blades The inlet is CGA580 for

The inlet is CGA580 for Helium

This Y valve is for connecting two "A" sized oxygen hoses to on oxygen regulator

The E-43 gas mixer is designed to fit Harris 43-2

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Advantage 4 1/2 x 7/8 Zirconia Flap Wheels 60 Grit 10 Pack Saw Blades The inlet is CGA580 forA 10 pack of Advantage Zirconia Flap Discs for sale that are 4 1 2 inch diameter. These zirconia flap wheels fit small 4 1 2 inch angle grinders. The discs are 1 2 inch thick with resin coated paper backing. The 7 8 inch arbor hole has a durable metal outer layer and is standard for 4 1 2 inch grinders with the retaining nut. 60 grit zirconia flap discs are considered medium coarse for sanding and polishing steel.