Hertel 72296395 Chucking Reamer 0.3105 in Hss 6 Flute

Product Description

The HERTEL 72296395 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled or bored holes to precise, repeatable diameters. With a cutting diameter of 0.3105 inches and a bright, uncoated HSS construction, this reamer delivers accurate sizing and smooth surface finish in a wide range of ferrous and non-ferrous materials. The straight-cylindrical shank seats securely in standard drill chucks or collet holders. At 4-1/2 inches overall length with a 1-1/2 inch flute length and 6 spiral flutes in a right-hand cutting direction, it is sized for machine-tool use in CNC machining centers, lathes, and drill presses.

This chucking reamer is suited for production and maintenance machining environments where hole tolerances and surface finish are critical. It is classified as a dowel pin reamer at the 0.3105 D/P size, making it appropriate for reaming holes intended to receive tight-tolerance dowel pins. Typical users include machinists, toolroom technicians, and maintenance mechanics working on fixtures, jigs, or precision assemblies requiring controlled hole geometry.

Key Features

• 0.3105 inch cutting diameter — dowel pin size for precise pin-fit holes
• HSS construction — suitable for a broad range of workpiece materials
• 6 spiral flutes, right-hand cut — promotes smooth chip evacuation and consistent finish
• Straight-cylindrical shank — compatible with standard drill chucks and collet holders
• Bright/uncoated finish — no coating buildup at cutting edges; easy to inspect for wear
• 4-1/2 inch OAL with 1-1/2 inch flute length — compact geometry suited for machine-tool applications

Compatibility

Designed as a machine chucking reamer for use in CNC machining centers, lathes, and drill presses equipped with standard drill chucks or collet-type toolholders accepting a straight-cylindrical shank at the 0.3105 inch diameter range.

Installation Notes

This reamer is intended for use by qualified machinists in machine-tool setups. Secure the straight-cylindrical shank firmly in a drill chuck or collet holder before operation, and verify runout is within acceptable limits prior to cutting. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Always bring the spindle to a complete stop and follow lockout procedures before changing or inspecting tooling.