RS PRO Straight Shank Reamer Bit 7.75 mm Diameter, HSS, 90mm Overall Length, 6 Flutes, 394-273

The RS PRO 394-273 Straight Shank Reamer Bit is an industrial-grade cutting tool engineered for precision finishing in metalworking applications. Designed with a straight shank and a 7.75 mm diameter, this reamer bit is ideal for operations requiring fine-tuning of hole dimensions to achieve a high-quality surface finish. Manufactured from high-speed steel (HSS), it offers outstanding hardness, durability, and resistance to wear, making it well suited for continuous use in demanding environments.

This reamer bit features a 4 mm shank size, ensuring a secure fit with compatible tool holders and machines. With its 6-flute construction, the tool provides efficient chip evacuation and produces accurately dimensioned, smooth holes. The 35 mm cut length is engineered for both versatility and efficiency, facilitating fast cutting while minimizing material deformation during finishing processes.

Specifically, the RS PRO 394-273 is designed to ream solid or split bearings, bushings, and similar components, making it a dependable choice for manufacturing, industrial maintenance, automotive repair, and general workshop use. The overall length of 90 mm allows for controlled operations, contributing to higher accuracy and safety during use in hand or machine-driven reaming tasks.

This one-piece reamer bit prioritizes operator convenience by supporting easy installation, high repeatability, and consistent quality across repeated finishing jobs. Its robust HSS body withstands the rigors of repeated cutting operations and is suitable for use with manually operated drill presses as well as CNC machines.

Applications for this reamer bit include but are not limited to: finishing and sizing of pre-drilled holes in steel, cast iron, and non-ferrous alloys; assembly of precise mechanical parts such as bushings and bearings; and maintenance tasks requiring high-accuracy hole finishing. The design supports compatibility in a wide range of industrial, maintenance, and repair settings.

For professionals seeking a robust and precisely engineered reamer, the RS PRO 394-273 offers a blend of reliability, technical capability, and ease of use, aligning with the needs of manufacturing, automotive, maintenance, and workshop sectors.

Precision reamer bit with straight shank for accurate finishing of machined holes. Manufactured from high-speed steel (HSS) for strength and wear resistance. 7.75 mm diameter with a 4 mm shank size for stable tool holding.

Six-flute design and 35 mm cut length for effective chip removal and smooth operation. Ideal for reaming solid or split bearings, bushings, and high-tolerance holes. Single-piece construction aids in repetitive accuracy and operational consistency.

Suitable for use in industrial workshops, manufacturing lines, and general mechanical maintenance. Explore more Reamer Bits and industrial tooling in the Precision Tooling and Power Tools categories on EnvMart.