Mechanical Internal Micrometer – MTA ‘ECO’ series
Bowers MT Analogue Bore Gauges are an economical solution to accurate shop-floor bore measurement with a wide application range of 2-6mm (2-point) and 6-300mm (3-point). Sets are supplied with master setting rings and individual units supplied with or without a ring.
Features:Mechanical Internal Micrometre – MTA ‘ECO’ Series.
- Range 2-300mm
- 2-6mm : 2 point and 6-300mm : 3 point measurement
- Manufactured in the UK to Bowers’ very high quality standards
- Precision lapped tungsten carbide measurement anvils for maximum durability
- Blind bore measurement between 2-6mm and 12-300mm
Products Details:
| Code (without rings) | Range (mm) | Measurement Points | Graduation (mm) | Accuracy (mm) |
|---|---|---|---|---|
| MTA1W | 2.0-2.5 | 2 Point | 0.001 | ±2 |
| MTA2W | 2.5-3 | 2 Point | 0.001 | ±2 |
| MTA3W | 3-4 | 2 Point | 0.001 | ±2 |
| MTA4W | 4-5 | 2 Point | 0.001 | ±2 |
| MTA5W | 5-6 | 2 Point | 0.001 | ±2 |
| MTA6W | 6-8 | 3 Point | 0.001 | ±2 |
| MTA8W | 8-10 | 3 Point | 0.001 | ±2 |
| MTA10W | 10-12 | 3 Point | 0.001 | ±2 |
| MTA12W | 12-16 | 3 Point | 0.005 | ±2 |
| MTA16W | 16-20 | 3 Point | 0.005 | ±2 |
| MTA20W | 20-25 | 3 Point | 0.005 | ±3 |
| MTA25W | 25-30 | 3 Point | 0.005 | ±3 |
| MTA30W | 30-40 | 3 Point | 0.005 | ±3 |
| MTA40W | 40-50 | 3 Point | 0.005 | ±3 |
| MTA50W | 50-63 | 3 Point | 0.005 | ±3 |
| MTA62W | 62-75 | 3 Point | 0.005 | ±3 |
| MTA75W | 75-88 | 3 Point | 0.005 | ±3 |
| MTA87W | 87-100 | 3 Point | 0.005 | ±3 |
| MTA100W | 100-125 | 3 Point | 0.005 | ±5 |
| MTA125W | 125-150 | 3 Point | 0.005 | ±5 |
| MTA150W | 150-175 | 3 Point | 0.005 | ±5 |
| MTA175W | 175-200 | 3 Point | 0.005 | ±5 |
| MTA200W | 200-225 | 3 Point | 0.005 | ±5 |
| MTA225W | 225-250 | 3 Point | 0.005 | ±5 |
| MTA250W | 250-275 | 3 Point | 0.005 | ±5 |
| MTA275W | 275-300 | 3 Point | 0.005 | ±5 |


