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BB2055 Straight Flute Solid Carbide Reamer
Precision carbide reamer for CNC hole finishing in the 2.91–5.45 mm diameter range. The straight-flute design is intended for sizing and finishing pre-drilled holes where dimensional consistency and surface quality are important.
Key Features
Solid carbide construction: provides rigidity and wear resistance for precision reaming.
Straight flute geometry: suitable for controlled hole finishing and stable guidance in existing holes.
Fine diameter selection: multiple precision sizes are available across the listed range.
BB2055 series: part of BB Tool’s carbide hole-finishing range.
Typical Applications
Finishing pre-drilled or pre-bored holes
Improving final hole size consistency
Precision CNC reaming in small-diameter components
General hole-finishing operations where a straight-flute carbide reamer is preferred
How to Read the Size
Variant dimensions are shown in a format such as 2.91×25×50×4T. The first value is the reamer diameter, followed by the listed length dimensions and flute count. Select the exact variant required by your finished-hole specification.
Machining Notes
A reamer is a finishing tool and should not be used to remove the same amount of material as a drill. Leave an appropriate and consistent reaming allowance in the pre-hole, use rigid toolholding, minimize runout, and select cutting parameters according to workpiece material and machine conditions.
Need help selecting a size? Send BB Tool your target finished diameter, tolerance, workpiece material and pre-hole size for guidance.
