Description
Product Overview
The Starrett 670B Hole Depth Gauge is engineered for precise measurement of internal hole depths up to 42 mm (1‑11/16 in). Constructed from hardened steel, it features a 9.5 mm diameter clamping hole that securely attaches to any AGD‑standard indicator, ensuring stable and repeatable readings. Its compact size (5.12 x 1.57 x 0.98 in) and lightweight design (3.53 oz) make it easy to handle in confined spaces.
![[Product front view showing all components]](https://www.juicerecipes.store/wp-content/uploads/2026/05/bfd42a3d53354f97b249ac156c255cb3.jpg)
Usage
Ideal for machinists, maintenance technicians, and quality inspectors, this gauge excels in measuring the depth of drilled holes, tapped threads, and recessed features on machinery, tooling, and components. It performs reliably in workshop, factory floor, and field environments where accuracy and durability are essential.
Why Choose Us
Starrett brings over 140 years of American manufacturing heritage to every tool. The 670B gauge is made in the USA, adhering to strict quality controls that guarantee consistent performance. Backed by a reputation for precision, this gauge offers long‑term reliability and comes with Starrett’s customer support for any service needs.
Key Features
- Measures hole depths up to 42 mm, covering most common industrial applications.
- Secure 9.5 mm clamping hole fits all AGD indicators for stable positioning.
- Compact, lightweight design allows easy access to tight spaces.
- Durable hardened‑steel construction ensures long‑term accuracy.
- U.S. made with full customer support and warranty coverage.
FAQ
What is the maximum depth this gauge can measure?
The gauge measures depths up to 42 mm (1‑11/16 in).
Is the gauge compatible with all indicator brands?
It fits any indicator that follows AGD standards, which includes most major brands.
How do I ensure accurate readings?
Secure the gauge in the clamping hole, align it with the hole axis, and read the indicator at eye level to avoid parallax error.
Can I use this gauge on non‑metal surfaces?
Yes, it works on plastic, wood, and composite materials as long as the surface is flat and the hole is accessible.
What warranty does Starrett provide?
Starrett offers a limited lifetime warranty against manufacturing defects, plus access to their technical support team.
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