1-3/8″ 4MT Spiral Flute Taper Shank Bridge Reamer HSS DWRRB1-3/8 Express Delivery

Industrial-grade reaming tool designed for precision hole finishing in metalworking environments. The 1-3/8″ diameter, 4MT spiral flute bridge reamer is constructed from high speed steel to deliver durability and consistent bore quality under demanding applications.

Specs

Dimensions: Diameter 1-3/8″

Drive Type: 4MT Taper Shank

Material Grade: High Speed Steel

Features

Spiral flute design: Enhances chip evacuation and produces cleaner bore finishes in steel, cast iron, and alloy materials.

4MT taper shank: Delivers secure seating in Morse taper adapters and machine spindles, reducing runout during reaming operations.

High Speed Steel construction: Provides wear resistance and edge retention at typical reaming speeds when used with appropriate lubrication or coolant.

Precision bore alignment: Ground geometry supports consistent hole diameters and concentricity across multiple passes in production and repair scenarios.

Use cases: Finishing through-holes in hydraulic blocks, valve bodies, die tooling, and industrial components requiring tight bores and reliable repeatability.