Design and Construction — a VPOINT long-shank carbide burr for deep cavities and reach work, sized for steel / stainless welds and similar work. YG8 carbide at HRA 89–91; die-grinder reference speeds are in the performance table below, with the flute-style guidance in the FAQ. ISO 9001 production, batch-verified, custom sizes from drawings.

Design and Construction

A high-performance long-shank carbide burr with a controlled braze joint between the carbide head and the steel shank. Joint position, braze coverage and concentricity are treated as the primary quality variables on an extended tool.

How It Works

On a long tool the braze is the most heavily loaded part of the assembly: bending moment rises with reach, and a void in the braze concentrates stress. Uniform braze coverage and a concentric joint keep the load distributed through the head.

Applications

High-load extended reach work, production deburring, foundry cleanup, continuous-duty die grinder use.

Field Cases

• Foundry: consistent braze quality ended the premature head losses seen on a long-reach job.
• Production cell: extended tools completed a full shift at steady feed.
• Tool room: concentric joints stopped the visible wobble at the head.

Performance Data

Suitable Materials

Cast iron, carbon and alloy steel, stainless steel and hardened tool steel.

Standard reference values for guidance only — always adjust to the workpiece material, the machine spindle speed and the feed, and confirm on the actual part.

Material Comparison: Braze Joint Quality: Full Coverage vs Voided vs Misaligned

How joint condition changes service life on a long tool. Typical industry failure analysis:

Delivery Scope

Single burr; head shape, shank diameter and reach confirmed with the order.

Why Choose VPOINT

The braze is the load path on an extended tool – it is specified and inspected, not assumed.

Precision & Quality Control

Braze coverage, joint position and concentricity inspected per lot at micron level with ISO 9001 batch traceability.

Specifications

Published specification:

Frequently Asked Questions

How deep can the long-shank version reach?

100, 150, 200 and 300 mm reach classes — pick the shortest reach that gets you there, because reach amplifies any collet runout.

How do I keep it from chattering?

Seat the shank fully, use light pressure, and let the flutes clear — long tools punish heavy hands.

Same head codes as standard burrs?

Yes — SA–SM contours carry over, so a long-shank burr matches the shape you already run on short shanks.

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