BB2055 Straight Flute Solid Carbide Reamer | 5.46–7.99mm

BB2055 Straight Flute Solid Carbide Reamer

Precision carbide reamer for CNC hole finishing across the 5.46–7.99 mm size range. This straight-flute design is intended for sizing and finishing existing holes with improved dimensional control and surface consistency.

Key Features

• Solid carbide body: provides rigidity and wear resistance for precision reaming.
• Straight flute geometry: supports stable guidance in pre-drilled or pre-bored holes.
• Multiple precision diameters: available in fine size increments across the listed range.
• 4T / 6T configurations: flute count varies by diameter according to the listed variant.

Typical Applications

• Final sizing of pre-machined holes
• Precision hole finishing on CNC machines
• Improving dimensional consistency and surface finish
• General-purpose reaming where a straight-flute carbide tool is suitable

How to Read the Size

Variant dimensions are shown in a format such as 5.46×30×60×4T or 5.91×30×60×6T. The first value is the nominal reamer diameter, followed by the listed length dimensions and flute count.

Machining Notes

Use this tool as a finishing reamer rather than a primary hole-making tool. Maintain a consistent pre-hole allowance, control spindle and holder runout, and choose speed, feed and lubrication according to the workpiece material and required tolerance.

Need help selecting a diameter? Send BB Tool your target finished-hole diameter, tolerance, material and pre-hole size for guidance.