Stay Connected
Be the first to know about new products, events and special offers.


JAT-451, 5" Angle Grinder

High-quality tools designed for daily, 8 hour use in demanding applications and environments, the R8 Series are engineered with additional features for improved power, safety and comfort.
Buy Now >> 505451 Find Dealer >> 505451
  • 5" wheel size
  • Precision spiral bevel gears transfer torque and speed to spindle for added durability
  • Easy to use spindle lock system holds the cutting wheel for quick disc changes
  • Tapered angle gear housing allows greater visibility of targeted work area
  • Ergonomically designed grip absorbs vibration and reduces hand fatigue
  • Tool-less wheel guard swivels 360° with 9 preset positions
  • Safety throttle lock prevents accidental engagement
  • Variable-speed throttle ramps up to maximum RPM
  • Two-position auxiliary handle for versatility
  • Rugged, ball-bearing design for durability
  • Lightweight aluminum construction
  • Grinding wheel not included
  • Performace @ 90 PSI. Air Inlet NPT 3/8". Min Hose Size 3/8"

Show More

ClassificationR 8
Wheel Size (In.)5 x 7/8 x 1/4
Spindle Thread (In./TPI)5/8"- 11 UNC
Horse Power (HP)0.9
Free Speed (RPM)12,000
Air Inlet (NPT/In.)1/4
Air Hose (ID/In.)3/8
Air Pressure (PSI)90
Air Consumption (CFM)4
Sound Power (db) (A)91
Sound Pressure (db) (A)83
Vibration Value (m/s²)2.4
Overall Length (In.)9-3/8
Weight (Lbs.)4.33

Show More

Red Assurance Lifetime Warranty

We are confident of every Air Tool we manufacture. To prove it, we back every Air Tool that bears the JET name with a Lifetime Warranty. The JET Lifetime Warranty covers manufacturer's defects, but does not cover misuse, abuse, accidents, negligence, wear and tear, improper repair or alternations.

1 Year 'Wear & Tear' Coverage

JET covers all Air Tool repair costs including parts and labor for the first year of ownership. Proof of purchase is required. JET's 'Wear & Tear' Coverage does not cover misuse, abuse, accidents, negligence, improper maintenance, repair or alterations. 

Stock NoModel NoClassificationCollet Size (In.)Wheel Size (In.)Spindle Thread (In./TPI)Body TypeBuying Options
505404JAT-404R 81/4Full, Straight
Buy Now >> 505404
Find Dealer >> 505404
505405JAT-405R81/4Mini, Right Angle
Buy Now >> 505405
Find Dealer >> 505405
505406JAT-406R81/4Mini, 115° Angle
Buy Now >> 505406
Find Dealer >> 505406
505407JAT-407R81/4Full, Extended
Buy Now >> 505407
Find Dealer >> 505407
505450JAT-450R 84 x 5/8 x 1/43/8"-24 UNF
Buy Now >> 505450
Find Dealer >> 505450
505451JAT-451R 85 x 7/8 x 1/45/8"- 11 UNC
Buy Now >> 505451
Find Dealer >> 505451
505452JAT-452R 87 x 7/8 x 1/45/8"- 11 UNC
Buy Now >> 505452
Find Dealer >> 505452