| SSA4G | Engineering Square - Graduated Metric & Imperial 100mm |  |
| SSA6G | Engineering Square - Graduated Metric & Imperial 150mm |  |
| SSA2 | Engineering Square - Non-Graduated 50mm |  |
| SSA3 | Engineering Square - Non-Graduated 75mm | |
| SSA4 | Engineering Square - Non-Graduated 100mm | |
| SSA6 | Engineering Square - Non-Graduated 150mm | |
| SSA8 | Engineering Square - Non-Graduated 200mm | |
| SSA10 | Engineering Square - Non-Graduated 250mm | |
| SSA12 | Engineering Square - Non-Graduated 300mm | |