| 511 | Ruler & Square | Company Product |
| 512 | Radius Gauge | Company Product |
| 513 | Rotation Laser Level | Company Product |
| 514 | Rope Hook | Company Product |
| 515 | Roller & Tracks | Company Product |
| 516 | Refrigeration System Design | Company Product |
| 517 | Refrigeration System Maintenance | Company Product |
| 518 | Refrigeration System Repair | Company Product |
| 519 | Roof Metal Panels | Company Product |
| 520 | Refrigerators | Company Product |
| 521 | Refurbished Engines | Company Product |
| 522 | Rough Terrain Bulldozer | Company Product |
| 523 | Rough Terrain Tractor | Company Product |
| 524 | Refurbished Tractor | Company Product |
| 525 | Refurbished Motor Grader | Company Product |
| 526 | Refurbished Wheel Grader | Company Product |
| 527 | Refurbished Wheel Loader | Company Product |
| 528 | Road Paving Machine | Company Product |
| 529 | Road Millers | Company Product |
| 530 | Road Planers | Company Product |
| 531 | Road Roller | Company Product |
| 532 | Road Milling Bits | Company Product |
| 533 | Road Milling Tool | Company Product |
| 534 | Refrigerated Dryers | Company Product |
| 535 | Ratchet Counter | Company Product |
| 536 | Rider Pallet Trucks | Company Product |
| 537 | Roof Washers | Company Product |
| 538 | Roofing Washers | Company Product |
| 539 | Roofing Nail With Synthetic Rubber Washers | Company Product |
| 540 | Roofing Nail With Washers | Company Product |