Tri Tool Inc. - Pipe Beveling & Precision Machine Tools, and Construction Services

Milling, Keyway Products

Model 404, 424 KEYMASTER™, Portable Keyway Machine

This comprehensive keyway system is designed to quickly and easily machine precision keyways on 1 1/2" to 24” (38.1 to 609.6mm) shafts.

Perfect for motor shafts, pump shafts, boring inspection holes: at paper mills, process industries, construction sites, power plants, refineries, military equipment, shipbuilding, and machine shops.




  • 1.5” to 4.5” (38.1 to 114.3mm)
  • Extension, to 24” OD (609.6mm)
  • Clamping Length, 1” (25.4mm) Min
  • Keyway Width, .250” to 1.25” (6.35 to 31.75mm)
  • Keyway Length, 6.0” (152.4mm)
  • Depth of Cut, 2” (50.8mm) Max
  • Electric Motor, Variable Speed
  • Weight 61 lbs (27.72 kg)
  • Variable speed electric motor, six exact setting, 0 to 560 RPM
  • Uses standard 1/2” shank end mill or 1/4” with adaptor
  • Dial indicator provides precision .001” (0.025mm) vertical feed
  • Anodized for rugged service
  • Sealed feed screw for smooth operation
  • Tapered roller bearings provide precise machining
  • Self centering “Bull Pin” guarantees accurate repeatable positioning to machine centerline
  • Vertical locking for precise depth tolerance
  • Adjustable no-load gibs prevent chip fouling
  • Side to side positive locking screws ensure offset alignment
  • Locator plate for precision magnetic base dial indicator (included)
  • “Vee Base” mounting for precision alignment to the shaft
  • Common ratcheting wrench for length feed and depth of cut
  • Top and bottom handles for easy carrying and positioning
Model 404, 424 Product Features


Made in the USA


More Information:

Technical Specifications: Model 404, Model 424

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