BF2055 Straight Flute Solid Carbide Reamer | 2.91–7.42mm

BF2055 Straight Flute Solid Carbide Reamer

Precision solid carbide reamer for final sizing of pre-drilled or pre-bored holes from 2.91 to 7.42 mm. This BF2055 series uses straight flutes for stable guidance and controlled finishing in precision CNC applications.

Key Features

• Solid carbide construction: provides rigidity and wear resistance for accurate reaming.
• Straight flute geometry: supports stable cutting and controlled chip flow in existing holes.
• Fine diameter coverage: many sizes are available in 0.01 mm increments for close matching to target dimensions.
• 4T / 6T configurations: flute count varies with tool diameter.

Typical Applications

• Precision sizing of drilled or bored holes
• General CNC reaming
• Through-hole and blind-hole finishing where the selected geometry and chip control are suitable
• Components requiring accurate final hole diameter and improved surface finish

How to Read the Size

Variants use formats such as 2.91×25×50×4T. The first value is the nominal reamer diameter, followed by the listed length dimensions and flute count.

Machining Notes

Reaming is a finishing operation. Prepare a consistent pre-hole allowance, use rigid low-runout toolholding, and select speed, feed and lubrication according to workpiece material, machine rigidity and required tolerance. Avoid excessive stock removal with the reamer.

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