Overview Reviews Product Description Premium HSS hand tap Ground thread Bright finish Left hand thread Available in taper (7 - 10 thread chamfer), plug (3 - 5 thread chamfer), and bottoming chamfer (1 - 2 thread chamfer) The set part number includes one each of taper, plug, and bottoming chamfers Designed for hand tapping in wide variety of materials in both through hole and blind hole applications Clarkson Osborn Catalog Product Videos Custom Field Size 1/4"-28 NF Flute length 1" Overall length 2-1/2" Set includes Taper, Plug, Bottoming Product Reviews Write a Review Write a Review × Clarkson-Osborn 1/4"-28 NF HSS Warwick® Left Hand Tap Set TA02341 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *