BRAZED CARBIDE TIPPED TAPER SHANK HOLE MILL AS PER IS: 5989 DIAMETER: 17. 7MM, TIP LENGTH: 45MM, OVER AL, HSS CONCAVE MILLING CUTTER SIZE: DIA: 63MM WIDTH: 16MM RADIUS: 4MM BORE": 22MM. MAKE: ADDIUSON/ I. T/ MIRA, HSS ( M42 ) END MILL OF DIA: 36. 0MM X SHANK DIA: 32. 0MM X F. L.: 53. 0MM X OAL: 133MM OR EQUIVALENT NO. OF FL