Timunr 1-2-3 Inch Block Set V Blocks Hardened Steel High Accuracy Pair

Description

Product Overview

The Timunr 1-2-3 Inch Block Set is a precision‑engineered pair of V‑blocks designed for the most demanding calibration and measurement tasks. Each block measures exactly 1 × 2 × 3 inches and features a single 1/2‑inch untapped through hole that provides a reliable reference for positioning workpieces, tools, and fixtures. Constructed from accuracy‑grade tool steel that has been hardened to a Rockwell hardness of HRC55‑62, the blocks exhibit exceptional durability and resistance to wear, ensuring long‑term performance in harsh industrial environments.

Every face of the blocks has been ground, heat‑treated, and case‑hardened to achieve flatness and parallelism within 0.0003 in, while the matched pair tolerance is held to 0.0002 in. This level of precision guarantees that the blocks remain square and true even after repeated use, making them an indispensable component for any metrology or machining workflow. The product dimensions are 4.13 × 3.15 × 1.18 inches, and the set weighs 3.33 pounds, offering a solid feel without being overly cumbersome.

Usage

These V‑blocks are ideally suited for a wide range of applications across manufacturing, inspection, and research settings. In a machine shop, technicians use the blocks to align and support workpieces during milling, drilling, and grinding operations, ensuring that the part remains perfectly perpendicular to the spindle axis. In a calibration laboratory, the blocks serve as reference standards for verifying the accuracy of measuring instruments such as micrometers, dial indicators, and coordinate measuring machines (CMMs).

The 1/2‑inch through hole provides a versatile mounting point for a variety of accessories, including gauge pins, probe holders, and custom fixtures. This flexibility allows users to create repeatable setups for tasks like measuring the flatness of a surface plate, checking the runout of rotating components, or establishing a known datum for complex assemblies. The blocks are also valuable in educational environments, where they help students understand fundamental concepts of geometry, tolerance, and precision engineering.

Because the blocks are made from hardened steel, they can withstand the rigors of daily use on the shop floor, including exposure to coolant, oil, and occasional impacts. Their compact size makes them easy to store in tool chests, cabinets, or dedicated metrology drawers, while the robust construction ensures they retain their calibrated dimensions over time.

Why Choose Us

Timunr is a trusted name in the industrial and scientific market, known for delivering products that meet stringent quality standards. Each block in this set undergoes a rigorous inspection process that includes dimensional verification, hardness testing, and surface finish assessment. This commitment to quality control guarantees that every block you receive conforms to the advertised tolerances and performance specifications.

Our V‑blocks are manufactured using state‑of‑the‑art CNC machining centers, which enable us to achieve the tight tolerances required for high‑precision work. The heat‑treatment process is carefully monitored to produce a uniform hardness profile, reducing the risk of deformation or warping under load. Additionally, the case‑hardening technique adds a wear‑resistant outer layer while preserving a tough core, extending the service life of the blocks.

Customer support is a cornerstone of the Timunr experience. Our technical team is available to answer any questions you may have about installation, usage, or maintenance. Should you encounter any issues, we offer a responsive after‑sales service that includes troubleshooting assistance and, if necessary, replacement of defective components.

Key Features

• Precision‑ground faces with flatness and parallelism within 0.0003 in for reliable measurements.
• Hardened tool steel construction (HRC55‑62) provides exceptional durability and wear resistance.
• Single 1/2‑inch untapped through hole offers versatile mounting options for gauges and fixtures.
• Matched pair tolerance of 0.0002 in ensures consistent performance across both blocks.
• Comprehensive after‑sales support and technical assistance for seamless integration into your workflow.

FAQ

What is the recommended cleaning method for these V‑blocks?

Use a lint‑free cloth with a mild solvent or isopropyl alcohol to remove oil, coolant, and debris. Avoid abrasive cleaners that could scratch the surface.

Can the blocks be used with magnetic workholding systems?

Yes, the hardened steel material is compatible with most magnetic bases, allowing you to secure the blocks firmly to a ferromagnetic surface.

Do the blocks come with any calibration certificate?

Each set includes a calibration report that documents the measured tolerances and hardness values, providing traceability for quality‑controlled environments.

How should the blocks be stored to maintain their accuracy?

Store them in a clean, dry environment, preferably in a dedicated metrology cabinet or drawer, to protect them from dust and moisture that could affect surface integrity.

Are replacement parts available if a block becomes damaged?

Timunr offers a replacement program for individual blocks. Contact our support team with the serial number, and we will arrange a replacement that matches the original specifications.