Precision ground to exacting tolerances and form relived to insure concentricity of 100 degree countersink angle.3/8"-#21 HSS Threaded Shank Stop Countersink Made from the finest high speed tool steel..
HSS Spiral Point Tap, 5/16"-24, 2 Flutes HSS, Spiral Pointed, Size: 5/1624, Limit H3, Number of Flutes 2. The Machine Tap shoots chips ahead of the cutting action, thus reducing loading and clogging in the flutes.
When Tight, The Wedging Action Of Sleeve Between Body And Nut Create A Leak Free Connection.Compression Unions Are Used In Low Pressure Application Such As: Air, Oil, And Water. Brass compression union, 1/2, 5/bag Use For Joining 1/2" Copper, Brass, Or Aluminum Tubing In Low-Pressure Applications (Not Brake Lines). They Are Generally Used To Connect Lengths Of Copper, Brass, And Aluminum Tubing.