BB2055 PRO Carbide Reamer 1–12mm | H7 | Spiral Flute

Full Edge Polishing

All cutting edges are fully ground and polished for consistent surface finish and dimensional accuracy.

Passivation Treatment & Hexagonal Shank

Edge passivation reduces micro-chipping at the cutting edge. Hexagonal shank design provides secure chuck engagement.

H7 Precision | High-Finish Cutting

Suitable for steel parts up to HRC60. Capable of rough-to-finish machining in a single tool, reducing tool changes and cycle time.

Fixed Shank Design

Straight shank with anti-slip tail geometry. Fits standard CNC collet chucks for accurate, repeatable positioning.

Fully Ground Cutting Edge

All flutes are precision-ground for uniform cutting load distribution and extended tool life.

Ultrafine Carbide Substrate

Manufactured from ultrafine-grain cemented carbide. Provides high wear resistance and toughness for high-speed, high-hardness applications.

Material & Construction

• Carbide body with spiral chip groove
• Hard PVD coating
• Fine-ground shank for chuck accuracy
• Universal tail chamfer for standard collets