Harvey Tool — Harvey-Keyseat-006_3x_C3_Rep

Harvey Tool – 43998-C3 Keyseat Cutter – Square

Name: Harvey Tool - 43998-C3 Keyseat Cutter - Square
SKU: harvey-43998-c3
Availability: InStock

$105.30

0.2500" (1/4) Cutter DIA x 0.1870" (3/16) Width x 0.7500" (3/4) Neck Length – Standard Slotting – 6 FL – AlTiN Coated

UPC: N/A SKU: harvey-43998-c3 Categories: Harvey Tool, Keyseat Cutters, Keyseat Cutters, Specialty Profiles, Square

0.2500" (1/4) Cutter DIA x 0.1870" (3/16) Width x 0.7500" (3/4) Neck Length Carbide SquareStandard Keyseat Cutter, 6 Flutes, AlTiN Coated

Specifications
Cutter Diameter	0.2500" (1/4)
Cutter Width	0.1870" (3/16)
Neck Diameter	0.1250" (1/8)
Neck Length	0.7500" (3/4)
Reach Multiple	(3x)
Radial Depth Of Cut	0.0530"
Type	I
Flutes	6.0
Shank Diameter	0.2500" (1/4)
Overall Length	2.5000" (2-1/2)
Coating	C3
Profile	Square

Weight	0.049 lbs
Dimensions	2.6 × 0.512 × 0.512 in

Brand

Harvey Tool

Harvey Tool Products

Harvey Tool is known for high-performance miniature and specialty cutting tools designed for precision CNC machining, tight tolerances, difficult materials, and complex part features. At General Cutting Tools, you can shop a wide selection of Harvey Tool products for milling, holemaking, chamfering, deburring, engraving, threading, profiling, and specialty machining applications.

Harvey Tool products are a strong choice for machine shops, tool rooms, mold and die manufacturers, aerospace suppliers, medical manufacturers, and production facilities that need dependable carbide tooling for detailed work. Their lineup includes miniature end mills, ball end mills, corner radius end mills, tapered end mills, chamfer cutters, drill/end mills, keyseat cutters, thread mills, undercutting end mills, engraving cutters, burs, reamers, and other specialty tools.

Whether you are cutting aluminum, hardened steel, titanium, high-temp alloys, plastics, composites, wood, or other materials, Harvey Tool offers application-focused tooling options built to help improve accuracy, tool life, finish quality, and machining efficiency.

Browse Harvey Tool products below or contact General Cutting Tools for help finding the right tool for your application.

Harvey Tool Cutting Tools

Harvey Tool offers precision miniature and specialty cutting tools for CNC machining, milling, holemaking, chamfering, deburring, engraving, threading, and complex part features. General Cutting Tools carries a wide selection of Harvey Tool products for machine shops, manufacturers, tool rooms, and production facilities that need reliable carbide tooling for detailed, high-accuracy work.

Shop Harvey Tool end mills, thread mills, chamfer cutters, drill/end mills, keyseat cutters, engraving tools, reamers, burs, and other specialty tools designed for demanding materials and tight-tolerance applications.

Need This Tool Customized?

Every machining application is different. If this tool is close to what you need but not an exact fit, General Cutting Tools can help modify it for your specific job, machine, material, or production requirement.

We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.

Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.

Common Tool Customization Options

Diameter and OD Modifications

We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.

Bore Modifications for Saw Blades

Custom saw blade bore modifications are available for hole diameter changes, pinholes, mounting holes, and keyway cutouts to help match your machine setup and cutting requirements.

Length Adjustments

Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.

Shank Modifications

Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.

Radius, Chamfer, and Corner Changes

We can customize corner radius, chamfer angles, edge breaks, and other profile details to meet part print requirements or improve cutting performance.

Step Tool Modifications

For applications that require multiple diameters or operations in a single tool, we can create or modify step tools to help reduce tool changes and improve production efficiency.

Flute and Cutting Edge Adjustments

Depending on the tool and application, flute length, cutting edge geometry, end cutting features, relief angles, and cutting edge shape may be modified to improve chip evacuation, cutting action, and tool performance.

Regrinding and Resharpening

Many cutting tools can be reground or resharpened to restore performance, extend tool life, and reduce replacement costs.

Custom Profiles and Special Forms

For unique part features, we can help provide special forms, custom profiles, custom radii, counterbores, countersinks, keyseat cutters, form tools, and other application-specific tooling solutions.

Material-Specific Tool Adjustments

We can help modify or recommend tooling based on the material being machined, including aluminum, brass, bronze, plastics, stainless steel, hardened steel, cast iron, composites, and other industrial materials.

Have a Drawing, Sample, or Part Print?

Send us your print, sketch, CAD file, photo, tool number, sample, or application details. For the fastest quote, include the material being cut, quantity needed, required dimensions, tolerances, and any machine or holder requirements.

Coating Options

Tool coatings can be selected or added to improve wear resistance, heat resistance, lubricity, and performance in specific materials such as steel, stainless steel, aluminum, cast iron, and high-temperature alloys.

Request a Custom Tool Modification

Need this tool changed for your application? Contact General Cutting Tools today to discuss your custom tooling needs. We can help you find the right solution for your machine, material, and production goals.