Long Shank Corner Radius End Mills

Catalog Series and Dimensions

The listed NRBH/NRBI, HRBH/HRBI/HRBJ, HRBXH/HRBXI/HRBXJ, DRAH/DRAI/DRAJ and DRBH/DRBI/DRBJ groups cover 248 catalog model records. Two- and four-flute choices are represented across the groups; the available combination depends on the specific model.

For example, NRBH0402A and NRBH0402 share a D4 cutting diameter and R0.2 corner radius but have different listed shank diameters. Keep the full model code with the order so a size match does not become a holder mismatch. For each group, review its own image, dimension drawing and table.

How to Specify an Extended-Length Cutter

Start with the feature radius and cutter diameter, then compare the length of the cutting section with the surface that must be machined. Check the overall length against the machine and holder. Where the catalog lists effective length, use the dimension drawing to understand its reference; do not substitute overall length for usable reach.

For a deep pocket, clearance must be checked along the whole cutter and holder, not just at the tip. If a reduced neck is necessary, compare the long reach corner radius end mill range with the feature drawing. A longer shank alone does not establish clearance at every point. Terminology varies between suppliers, so check the actual profiles and dimensions instead of relying on the name alone.

Applications and Tool Selection

Shoulders and stepped features. A radiused tool corner can follow a feature that calls for a transition between the wall and floor. Check whether the specified corner radius fits the final geometry or whether a separate finishing operation is required.

Recessed surfaces. Compare flute length, total length and the holder envelope with the pocket and clamping arrangement. Excess tool projection can affect the setup; select the length needed for access rather than the longest option by default.

Distributor assortments. Separate model lines by diameter, corner radius, flute count and shank. Two catalog rows with the same cutting diameter are not necessarily interchangeable. When replacing another supplier’s cutter, compare its full drawing with the AXIMET row, including radius, flute length, shank diameter and overall length; share any additional fit requirements in the RFQ.

Order and Quality Requirements

Use the catalog model and drawing as the common reference for an order. Identify dimensions and edge features that matter to sample approval, and include the drawing revision and acceptance requirements in the RFQ. For repeat orders, retain the approved model, quantity by size and any agreed marking or packaging instructions. Send specific requirements for coatings or documents with the inquiry rather than assuming they apply to every model.

Catalog Series, Product Views and Dimension Drawings

NRBH NRBI Series · R013

HRBH HRBI Series · R028

HRBJ Series · R029

HRBXH HRBXI Series · R031

HRBXJ Series · R032

DRAH DRAI Series · R049

DRAJ Series · R050

DRBH DRBI Series · R052

DRBJ Series · R053

Catalog Model Specifications

Compare the listed cutting diameters, corner radii and lengths against the cutter and holder dimensions required for your job.

Production Equipment Reference

The photographs below show production equipment and workshop operations used as manufacturing-reference material for carbide tooling enquiries. Process requirements are confirmed for the selected model and order.

Inspection and Measurement Equipment Reference

The photographs below show inspection and measurement equipment used when discussing drawing dimensions and order requirements. The inspection scope is confirmed for the selected order.

Frequently Asked Questions