Toolex Reamer - Straight Shank - Spiral Flute - Carbide - H5 - 4.43mm

The Toolex Reamer - Straight Shank - Spiral Flute - Carbide - H5 - 4.43mm is a precision finishing tool designed to bring drilled holes to a tight, repeatable size. Built with a straight shank for easy mounting in standard toolholders, it features a left-hand spiral flute and right-hand cutting for efficient chip evacuation and clean bores. Sized at 4.43 mm with a tolerance around ±0.003 mm, this reamer delivers accuracy aligned with DIN 212 B–style specs, making it suitable for steel, stainless steel, cast iron, and non-ferrous materials.

Designed for engineers, machinists, and hobbyists who rely on consistent bore quality, the reamer uses intermediate precision carbide (K10) to balance durability with precise cutting performance.

• Intermediate precision carbide (K10) construction: Delivers reliable bore sizes and longer tool life in demanding materials, supporting repeatable results over multiple jobs.
• Left-hand spiral flute with right-hand cutting: Enables efficient chip evacuation and smooth bore finishes, reducing clogging and rework in deeper holes.
• 4.43 mm size with H5 tolerance (DIN 212 B–style): Provides predictable, interchangeably accurate diameters with tight ±0.003 mm tolerance for quality control.

Using this reamer helps streamline workflows by delivering consistent bore quality in a single setup, improving part fit and finish across steel, stainless, cast iron, and non‑ferrous workpieces. The straight shank integrates with common collets and chucks, while the carbide construction offers dependable performance in professional shops and serious hobbyist projects alike.