Compare Quick view Walter SKU: SMT36640 Walter Prototyp 9/16"-18-3B UNF Spiral Flute Tap A2345606-UNF9/16 (LOC2869B) Overall Length: 3.60" Coating: TICN Cutting Diameter: 9/16"-18 Flutes: 4 MPN: A2345606-UNF9/16 MSRP: Was: Price Now $84.95 2 In Stock Quantity Add to Your List