Bosch 1 5 8 in Carbide Tipped Horizontal Raised Panel Router Bit Pipe Threaders 75 Manufacturer Warranty Three Year 75 Manufacturer Warranty Three Year Limited Warranty1 Year free service90 Day Money Back GUARANTEE Certifications and Listings No Certifications or Listings KOHLER enameled cast iron simple lines to accentuate a surface Control cut design helps minimize kickback Micrograin carbide tips provide superior wear resistance and long life Minimum recommended panel thickness is 3 4 In Recommended for use with a router table Bit Style Horizontal raised panel Number of Flutes 1 Overall Diameter 1 5 8 in Cutting Edge Length 1 2 in Bit Shank Diameter 1 2 in Overall Length (Inches) 2