240/440 handles will accept 0.375″ or 8 mm diameter stem indicator. Each handle includes two interchangeable brass bushings for each diameter and an allen wrench.
Heat Stabilization Handles of all Dyer precision bore gages are made from Invar steel, a special alloyed steel that resists temperature change. This eliminates errors due to circulating temperatures.
Measuring Sleeve Holders
Standard Sleeve Holders
| Order
Number |
Shaft Ø | Holder Length (overall) |
| 240-005 | 0.472″ (12 mm) | 1.97″ (50 mm)
Less meas. contact pressure |
| 240-010 | 0.472″ (12 mm) | 4.13″ (105 mm) |
| 240-015 | 0.472″ (12 mm) | 9.25″ (235 mm) |
| 240-305 | 0.550″ (13.97 mm) | 5.50″ (140 mm) for electronic transducers |
| 240-595 | 0.400″ (10 mm) | 2.75″ (70 mm) Retractable (for super blind sleeves) |
| Order
Number |
Shaft Ø | Holder Length (overall) |
| 440-005 | 0.708″ (18 mm) | 5.50″ (139.7 mm) |
| 440-010 | 0.708″ (18 mm) | 9.10″ (235 mm) |
| 440-015 | 0.708″ (18 mm) | 15.75″ (400 mm) |
| Order
Number |
Extension Ø | Length |
| 240-309 | 0.47″ (12 mm) | 3.9″ (100 mm) |
| 240-310 | 0.47″ (12 mm) | 9.8″ (250 mm) |
| 240-311 | 0.47″ (12 mm) | 19.7″ (500 mm) |
| 240-312 | 0.47″ (12 mm) | 29.5″ (750 mm) |
| 240-313 | 0.47″ (12 mm) | 39.3″ (1000 mm) |
| Order
Number |
Extension Ø | Length |
| 440-104 | 0.708″ (18 mm) | 3.9″ (100 mm) |
| 440-105 | 0.708″ (18 mm) | 9.8″ (250 mm) |
| 440-110 | 0.708″ (18 mm) | 19.7″ (500 mm) |
| 440-115 | 0.708″ (18 mm) | 39.3″ (1000 mm) |
