Here we have QTY.1 of a Nice sharp used Extra Length RIGHT HAND Tap. Overall Length is 12" Made in the US America by Wood & Spencer Shank size is 1.230" Diameter round with a .924" square drive I do not see any chipped teeth It is a 6 Flute TAP NF HS-G E High speed steel hs hss
4-40 GH7 HIGH SPEED STEEL 2 FLUTE SPIRAL POINT PLUG TAP +.0035" 9/16" THREAD LENGTH 2" OVERALL LENGTH STEAM OXIDE TREATMENT: The surface treatment on this tap increases wear resistance, reduces friction and acts as a lubricant. 26020 MADE IN USA
4-40 H2 2 FLUTE HIGH SPEED STEEL TiN COATED REDUCED NECK SPIRAL POINT PLUG TAP 5/16" THREAD LENGTH 1/4" NECK LENGTH 9/16" THREAD DEPTH 1-7/8" OVERALL LENGTH 94400 MADE IN USA could be more effective for cnc machining. if you break it, it's your fault. for the same tap without a reduced neck, try
4-40 GH2 2 FLUTE HIGH SPEED STEEL SPIRAL POINT PLUG TAP 9/16" THREAD LENGTH 1-7/8" OVERALL LENGTH STEAM OXIDE TREATMENT: The surface treatment on this tap increases wear resistance, reduces friction and acts as a lubricant. This tap is not recommended for non-ferrous materials. If you are cutting steel or some other ferrous metal, try this tap which features a bright finish instead:
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