2 in X 1 in X 2 in, Commstone, Grade F With Straight Handle Stone mounted on a straight handle for difficult to reach commutator When compared to turning tools commstones are easier to use, more time effective, and remove less copper. Commstones should be twice as long as the width of the longest flat spot and as long as will work freely between adjacent brush sets..
Replaceable Acetal seat and straight through porting for bidirectional, high capacity flow and easy roddable cleaning.Block & Bleed Valve, Soft Seat, 1/2 NPT Male - 1/2 NPT Female, Steel, 0..187" Orifice, PTFE Packing 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability.