| hart full system map | 1.87 | 0.4 | 5847 | 20 | 98 |
| hart multiple drive 275-piece | 0.57 | 0.7 | 6983 | 29 | 58 |
| harts.system | 0.77 | 1 | 476 | 12 | 38 |
| hartley oscillator in multisim | 1 | 0.5 | 6153 | 30 | 50 |
| hart multiple drive 270 piece | 0.36 | 0.5 | 6254 | 29 | 33 |
| hart multiple drive 270 | 0.74 | 1 | 7940 | 23 | 82 |
| hart 275 pc set | 0.11 | 0.5 | 8136 | 15 | 11 |
| hart 275 piece tool set | 0.73 | 0.4 | 5584 | 23 | 23 |
| hart 50 piece drill and drive set | 0.96 | 1 | 5600 | 33 | 16 |
| hart 275 pc tool set | 0.11 | 0.3 | 2838 | 20 | 20 |
| hart 275 piece mechanics tool set | 1.19 | 0.1 | 1796 | 33 | 52 |
| hart 7.0 | 0.05 | 0.7 | 5764 | 8 | 81 |
| hart to hart complete series | 1.55 | 0.8 | 9408 | 28 | 36 |
| hart to hart series | 1.15 | 0.1 | 4625 | 19 | 13 |
| map of hart house | 1.89 | 0.1 | 3942 | 17 | 4 |
| hart 6.0 | 0.71 | 0.7 | 2217 | 8 | 95 |
