Champion 302-4-40-B Specifications:
• Size: 4-40
• No. Of Flutes: 3
• Length of Thread: 9/16″
• Overall Length: 1-7/8″
Champion 302-4-40-B Features:
• For hand tapping in maintenance and repair work and for re-threading applications where extreme thread accuracy and tolerance is not critical.
• Bottoming taps have only 1 to 1-1/2 threads of chamfer and are used to tap to the bottom of a blind hole.
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