Keo 952-000-520 | 5.000" Diameter x 1.531" Maximum Depth of Cut x 1.000" Width HSS Concave Radius Cutter

Description

The Keo 952-000-520 is a large-diameter, precision-ground, high-speed steel concave radius cutter made for milling accurate concave profiles, radii, and curved contours in metalworking operations demanding tight-tolerance surface geometry and consistent cutting performance. Cataloged as the Keo-520, this 5.000″ diameter concave radius cutter is built for arbor-mounted milling machine applications where a rigid, high-edge-count cutter is required to produce smooth, accurate curved surfaces on steel, cast iron, and non-ferrous workpieces. With a cutting width of 1.000″ and a maximum depth of cut of 1.531″, this HSS concave radius milling cutter with a 1.531″ DOC provides substantial material engagement capability, enabling machinists to generate deep, wide concave profiles in a single pass or progressive cutting sequence without tool deflection. The Keo large-diameter concave cutter features 26 cutting edges arranged in a neutral cutting direction, distributing cutting forces evenly across the cutter body and promoting smooth, chatter-free machining performance even at the large 5.000″ operating diameter where vibration and runout sensitivity are elevated concerns. The 1.000″ width radius cutter for metalworking is precision-ground to ensure accurate, repeatable concave radius geometry on every workpiece, making the Keo-520 a reliable choice for production runs and prototype machining alike where radius consistency from part to part is a critical quality requirement. Manufactured from premium high-speed steel concave radius cutter tool material, the Keo 952-000-520 delivers the hardness, toughness, and thermal resistance needed to maintain sharp cutting edges throughout extended machining operations on a wide range of metalworking materials. The arbor connection type with a 1.250″ connection diameter provides a stable, rigid interface between the cutter and the machine spindle, minimizing runout and maximizing the transmission of cutting forces from the spindle through the cutter body for consistent material removal. A 1.875″ hub diameter and 1.000″ hub width provide additional structural mass behind the cutting edges, contributing to the overall rigidity and vibration-dampening characteristics of this precision concave cutting tool for HSS applications in demanding milling environments. The neutral cutting direction of the Keo 952-000-520 radius cutter for machining curved profiles ensures balanced axial forces during cutting, reducing the tendency for the workpiece to lift or shift during aggressive material removal and improving overall workholding stability. As a 5″ diameter HSS curved profile cutter, the Keo-520 is well-suited for producing concave grooves, form profiles, and radius cuts on shafts, gear blanks, tool bodies, and structural components where curved geometry is a functional design requirement. The metalworking concave radius milling tool design of the 952-000-520 makes it an appropriate choice for horizontal and vertical milling machines equipped with arbor toolholding systems capable of accommodating the cutter's 1.250″ bore connection. Keo's reputation for precision form-cutter manufacturing is reflected in the tight tolerances and consistent geometry maintained across all 26 cutting edges of the 952-000-520, ensuring uniform chip load distribution and predictable tool life in production metalworking environments. The high speed steel concave radius cutter tool construction of the Keo-520 supports resharpening, allowing the cutter to be reground and returned to service multiple times over its lifecycle, providing a cost-effective solution compared to indexable form cutters in low-to-medium volume machining operations. For applications requiring a reliable, precision concave cutting tool for HSS applications on a wide range of metals, the Keo 952-000-520 delivers the size, edge count, and material quality needed to produce accurate, repeatable concave profiles consistently. Specify the Keo-520 5.000″ diameter concave radius cutter for your next curved-profile milling application and benefit from the performance, precision, and durability that Keo's form-cutter expertise delivers.

Product Features and Benefits

5.000″ Large Diameter For Wide Concave Profile Coverage

The Keo large-diameter concave cutter operates at a 5.000″ cutting diameter, enabling the machining of large concave radii and curved profiles in a single arbor-mounted setup on compatible milling machines.

26 Cutting Edges In Neutral Direction For Balanced Cutting Forces

With 26 edges cutting in a neutral direction, this high-speed steel concave radius cutter tool distributes cutting forces evenly, reducing chatter and promoting smooth, consistent material removal across the full cutting width.

1.531″ Maximum Depth Of Cut For Deep Profile Capability

The HSS concave radius milling cutter's 1.531″ DOC capacity allows machinists to generate deep concave forms and radius profiles in progressive or single-pass cutting sequences without exceeding tool deflection limits.

Arbor Mount With 1.250″ Connection For Rigid Spindle Interface

The 1.250″ arbor connection of this radius cutter for machining curved profiles provides a rigid, low-runout spindle interface that maximizes cutting stability and dimensional accuracy across production metalworking operations.

Premium HSS Construction For Resharpening

The metalworking concave radius milling tool is manufactured from high-speed steel, supporting multiple regrind cycles that extend cutter service life and reduce tooling cost in moderate-volume machining environments.

Frequently Asked Questions

What is the cutting diameter of the Keo 952-000-520 5.000″-diameter concave radius cutter?

The Keo-520 features a 5.000″ cutting diameter, making it a large-format precision concave cutting tool for HSS applications in both production and prototype milling operations.

How many cutting edges does the Keo large-diameter concave cutter have?

The Keo 952-000-520 high-speed steel concave radius cutter tool features 26 cutting edges arranged in a neutral cutting direction for balanced force distribution and chatter-free performance.

What is the maximum depth of cut for the HSS concave radius milling cutter 1.531″ DOC?

The Keo-520 1.000″ width radius cutter for metalworking achieves a maximum depth of cut of 1.531″, enabling deep concave profile generation in a single or progressive cutting pass on compatible milling machines.

What connection type and diameter does the 5″ diameter HSS curved profile cutter use?

The Keo 952-000-520 radius cutter for machining curved profiles uses an arbor connection type with a 1.250″ connection diameter for a rigid, stable spindle interface on horizontal and vertical milling machines.

Can the Keo-520 metalworking concave radius milling tool be resharpened?

Yes, the high-speed steel concave radius cutter tool construction of the Keo 952-000-520 supports resharpening, allowing the cutter to be reground and returned to service multiple times to extend tool lifecycle value.

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov