BB2055 PRO 150mm Spiral Flute Carbide Reamer for Steel | 3.9–20.1mm

BB2055 PRO 150mm Spiral Flute Carbide Reamer for Steel | 3.9–20.1mmThe BB2055 PRO spiral-flute solid carbide reamer is designed for precision finishing and final sizing of prepared holes in steel, alloy steel, cast iron and other general metals. Available in nominal diameters from 3.9–20.1mm, depending on the selected variant.Key Features BB2055 carbide grade for steel and general metal machining Designed for precision hole sizing and finishing after drilling or boring Solid carbide construction for good rigidity and wear resistance Spiral flute geometry for smooth cutting and controlled chip evacuation Oversized (PRO) shank design with full dimension coded in each variant How to ChooseSelect the nominal diameter according to the required finished hole size, then choose a length that reaches the machining position while allowing for hole depth and setup clearance. Before ordering, verify the complete variant dimensions and flute count rather than selecting by diameter alone.Application NotesA reamer is used to finish an existing prepared hole; it is not a substitute for drilling directly into solid material.