59/64" Diam, 3/4" Shank, Diam, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore MPN:GH8790594

These high-quality interchangeable pilot counterbores are an essential tool for industries such as aerospace, automotive, medical and electronic manufacturing that require precise boring in material surfaces to create internal threaded holes. The 59/64-inch diameter, 3/4-inch shank size fits many common power drills while the three flutes allow for efficient chip removal during use. Its straight shank design offers superior control and maneuverability when used with magnetic bit holders or drill chucks. The interchangeable pilot system provides easy adaptation to different hole sizes making it an indispensable tool in professional toolboxes across numerous industries where precise boring is needed on various materials like aluminum, stainless steel, and titanium.