National Machine Tool Company
Providing Keyway Solutions Since 1903
National Machine Tool Company | National Machine Tool Company Providing Keyway Solutions Since 1903

Design and Manufacturing of Custom Keyseat Millers to Stock Keyseat Millers/Cutters

At National Machine Tool Company we specialize in providing high quality custom keyseat millers for customers with demanding applications. Standard as well as special cutting tools and custom designs are available for production of full depth, internal, v shaped, two-step, parallel/opposite keyseats, straight splines, and radius arc splines. Our keyseat millers are the cost effective and faster alternative to EDM and broaching processes, and can work in both open end and blind bores. We offer millers in a range of sizes to produce bore diameters from .439” to 6”, keyslot widths of .030” to 2.5”, and a keyslot length of up to 12” in most material types. We manufacture attachments for use with manual equipment as well as horizontal and vertical CNC machining centers. Relief holes are not needed for the operation of our tools. For over 100 years, we at National Machine Tool have provided custom cutting solutions to meet the slotting requirements of customers in industries including food processing, pump manufacturing, automotive, aerospace, power transmission, lumber, and musical instruments. Our milling equipment has been reliably used for a myriad of applications including gears, impellers, couplings, blowers, motor shafts, pump sleeves, and valves among many others. For more details about the design and manufacturing of custom keyseat millers, or for the solutions to your internal keyseating problems please see the table below or contact us directly.

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Profiles

Custom Keyseat Millers Gallery

(Click on thumbnail to enlarge)

Milling Keyway
Milling Keyway
5 Spec
5 Spec
Bronze Part
Bronze Part
Keyway Ending in the Threaded Bore
Keyway Ending in the Threaded Bore
Keyway Ending
Keyway Ending

Threaded Bore
on CNC Equipment
on CNC Equipment
on Manual Machines
on Manual Machines
Keyway Milling for Coupling Adapter
Keyway Milling for Coupling Adapter

Downloads

Stock Keyseating and Oilgrooving Millers (PDF - 901KB)
Parts List (PDF - 749KB)
How to Change Driving Pins (PDF - 507KB)

Stock Keyseat / Millers Cutters Capabilities

General Capabilities
Blind Bore
Keyseat Cutter
Special Cutting Tool
Keyseaters
Keyways
Full Depth Keyways
Custom Designs
Keyway Types
Full Depth
Internal
V-Shaped
Two-Step
Parallel (Opposite)
Radius
Splines
Components
Cutters
Driving Pins
Body
Bores
Blind
Open End
Slots
Closed-End Oil
Radius Corners
Full Radius
Splines
Straight
Radius Arc
Machining Processes
Milling
Drilling
Boring
Counterboring
Grinding
Body Materials
Cast Iron
Mild Steel
Proprietary Materials
Cutter Materials
M2
M42
T15
M48
M4
Bore Diameter
.439 to 6 in
Keyslot (Cutter) Width
.030 to 2.5 in
Keyslot Length
Up to 12 in
Number of Pins
2 to 4
Tolerance
± 0.0005 in
Testing
Test Run
Additional Services
Coating
Plating
Special Packaging
Production Volume
Prototype to Production
Typical Lead Time
Replacement Cutters within 1 Day
Keyseaters Quoted on Job by Job Basis

Additional Information

Industry Focus
Pump Manufacturers
Food Processing
Automotive
Aerospace
Power Transmission
Lumber
Musical Instruments
Industrial Fans
Intended Applications
Gears
Impellers
Stub Shafts
Couplings
Pump Sleeves
Pulleys
Valves
Impellers
Fans
Blowers
Mixers
Extruders
Propellers
Adapters
Clutches
Conveyor Belt Rollers
Motor Shafts
Landing Gear
File Formats
PDF
Images

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