Plunger Tips (Steel) Aluminum   P.T. Special Is a prehardened (R/C 28-30) steel that requires no further heat-treating other than nitriding after machining. Diameters available from stock 2-1/16    2-3/16    2-5/16    2-7/16    2-9/16    2-11/16 2-13/16    3-1/16    3-5/16    3-9/16    3-7/8    4-1/16    4-9/16    5-1/8 Nitriding Procedure (Inert Gas) Nitriding Temperature 980 Degrees - 48 Hours at Temperature - .010/.012 Depth Quadco Cold Chamber Special (Shot Sleeve-Cold Chamber Metal Well) Nitrided Quadco P.T. Special (Plunger Tip) Nitrided Variance Inside Diameter 1.750 = .0005/-.000 2.000 = .0005/-.000 2.250 = .0005/-.000 2.500 = .0005/-.000 2.750 = .0005/-.000 3.000 = .0005/-.000 3.250 = .0005/-.000 3.500 = .0005/-.000 3.750 = .0005/-.000 4.000 = .0005/-.000 Outside Diameter 1.7455 = .000/-.001 1.995 = .000/-.001 2.245 = .000/-.001 2.495 = .000/-.001 2.7445 = .000/-.001 2.994 = .000/-.001 3.2435 = .000/-.001 3.493 = .000/-.001 3.7425 = .000/-.001 3.9920 = .000/-.001 .045  .005  .005  .005  .0055 .006  .0065 .007  .0075 .008

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