美国Dorsey metrology是一家历史悠久的量具制造企业，企业从制造机械表起家，可以提供表盘、表针等各类零配件。随着企业的不断发展和壮大，Dorsey metrology开始生产各类孔径量仪，涉及的规格和种类超过千种，并在美国和世界范围内使用。

Dorsey的产品主要分为以下几大类：

1.    指示表及其配件

2.    带表测量装置、测高仪、卡规、深度计

3.    内径、外径测量仪

4.    大尺寸直径测量量规、数显卡尺

5.    光学比较仪

6.    设置环、标准器等

    此外Dorsey metrology还生产大量程外径量仪、卡规等，苏州斯文克精密测量设备有限公司提供Dorsey metrology全系列产品，欢迎前来咨询。

1. Standard Style Bore Gage Features
2. Available with ISO 17025 certification.
3. Comfortable & ergonomic well balanced handle, can be removed to gain clearance in restricted areas.
4. Optional shock proof dial indicator with .001", .0005", .0001", or .00005" (.001mm, .002mm, .01mm) resolution available in single or multi revolution models. Available with Dorsey's digital housings for use with most digital indicator models.
5. Precision machined aluminum dial unit housing.
6. Precisely machined cast phosphor bronze gaging head for sensitivity and durability.
7. Stainless steel bore gage extension tubing in a wide variety of standard and special lengths.
8. Carbon fiber or stainles steel extra length extension tubing up to 144".
9. Thermally insulated high impact resistant shield protects extension tubing.
10. Unique "tandem" centralizer uses matched and lapped components to ensure accurate and repeatable centralization.
11. Replacable contacts available in steel, carbide or diamond.
12. Proven bell crank transfer is accurate and linear over its entire range.
13. Precisely machined cast phosphor bronze gaging head for sensitivity and durability.
14. All bore gage sizes utilize the same dial unit housing for extreme versality.