Top Rated 3/8″ Straight Shank Expansion Reamer HSS DWRRE3/8

Industrial precision tooling designed for controlled bore enlargement and finishing operations.

The 3/8 inch straight shank expansion reamer in High Speed Steel provides adjustable diameter capability for tight tolerance holes in metal components.

Specs

Dimensions: Diameter 3/8 inch; Shank type Straight

Material grade: High Speed Steel (HSS)

Features

Adjustable bore sizing: Expansion mechanism enables fine diameter setting within the tool’s operating range, facilitating on-machine size adjustments and reducing the need for multiple tooling passes.

Material integrity: High Speed Steel construction provides wear resistance and adequate toughness for machining environments subject to heat and wear.

Straight shank compatibility: Standard straight shank design accepts common collets and chucks, ensuring reliable alignment and repeatable hole sizes across fixtures.

Finishing performance: When used with proper feeds and speeds, yields improved bore finish with reduced burr formation compared to drilling alone.

Industrial use cases: Suitable for precision bore finishing in machine shops and production lines for steel, cast iron, and aluminum components such as housings, fittings, and valve bodies.