1 x 2 x 3 blocks 1/2 Hole Matched Pair V Block TJHSM Precision Steel

Description

Product Overview

The TJHSM 1 x 2 x 3 Blocks Single 1/2 Hole Matched Pair V Block is engineered for the most demanding dimensional calibration tasks. Each block is machined from precision‑grade tool steel that has been hardened and ground on all six faces, guaranteeing a uniform hardness and a surface finish that resists wear even after repeated use. The blocks measure 4.13 x 3.15 x 1.18 inches and weigh 3.33 pounds, providing a solid, stable platform that minimizes vibration and deflection during high‑precision operations.

Accuracy is the cornerstone of this product. The squareness of each face is held within 0.0002 inches per inch, while flatness and parallelism also meet the 0.0002‑inch tolerance. The two blocks are matched to each other with a tolerance of 0.0003 inches, ensuring that when they are used together they create a perfectly aligned reference plane. This level of precision makes the set ideal for calibrating measurement equipment, setting up workpieces, and verifying the geometry of other tooling.

Beyond raw accuracy, the design incorporates a 1/2‑hole configuration that allows users to insert pins, dowels, or other reference elements directly into the block. This feature simplifies the process of establishing repeatable spacing between components, reducing setup time and the potential for human error. The hole is positioned centrally and finished to the same tight tolerances as the surrounding surfaces, guaranteeing that any inserted element will sit true to the block’s calibrated geometry.

Durability is built into every aspect of the block’s construction. The hardened tool steel resists deformation, chipping, and corrosion, making it suitable for harsh shop floor environments where exposure to coolant, oils, and temperature fluctuations is common. The blocks are also easy to clean; a simple wipe with a lint‑free cloth restores their appearance without compromising the surface integrity.

In addition to the physical attributes, the product comes with a clear set of specifications that aid in documentation and compliance. The manufacturer, TJHSM, provides a detailed data sheet that includes dimensions, weight, material grade, and tolerance values. This information is essential for quality‑control records, ISO certification processes, and for customers who need to verify that the blocks meet specific industry standards.

Usage

These V blocks are versatile tools used across a wide range of industries, from aerospace component manufacturing to precision medical device assembly. In a typical machining environment, the blocks serve as reference surfaces for aligning workpieces on a milling table or a coordinate measuring machine (CMM). The 1/2‑hole allows technicians to insert a gauge pin, creating a fixed distance that can be measured repeatedly with micrometers or laser scanners.

Inspection laboratories rely on the blocks to verify the flatness and squareness of other gauges and fixtures. By placing a calibrated block against a test piece, inspectors can quickly assess whether the piece conforms to required tolerances. The matched pair design also enables the creation of custom spacers or jigs by stacking the blocks with shims, providing a modular solution for complex setups.

Educational institutions and training facilities use the blocks to teach fundamental concepts of metrology, such as the importance of reference surfaces, the impact of thermal expansion, and the methods for achieving repeatable measurements. Because the blocks are robust and easy to handle, they are ideal for hands‑on learning environments where durability is as important as precision.

Why Choose Us

Choosing the TJHSM V Block set means selecting a product that combines uncompromising precision with long‑term reliability. Our manufacturing process includes multiple stages of heat treatment, CNC grinding, and rigorous inspection using high‑resolution coordinate measuring equipment. Each block is individually verified to meet the 0.0002‑inch tolerance before it leaves the factory, ensuring that you receive a tool that performs exactly as advertised.

We stand behind our products with a comprehensive warranty and responsive technical support. If you encounter any issues during installation or operation, our engineering team is available to provide guidance, troubleshooting, and, if necessary, replacement parts. This level of after‑sales service distinguishes TJHSM from generic competitors who may not offer the same level of commitment.

Environmental responsibility is also a priority. The tool steel used in our blocks is sourced from certified suppliers who adhere to sustainable mining practices. Additionally, the manufacturing process is optimized to reduce waste, and any scrap material is recycled whenever possible. By choosing our V blocks, you are supporting a supply chain that values both quality and ecological stewardship.

Key Features

• Precision‑grade tool steel hardened and ground on all six faces for lasting accuracy
• Squareness and flatness within 0.0002 in, matched pair tolerance of 0.0003 in
• Convenient 1/2‑hole design for inserting pins, dowels, or reference rods
• Robust construction resists wear, corrosion, and temperature extremes
• Dedicated customer support and warranty for peace of mind

FAQ

What material is the V block made from?

The block is machined from precision‑grade tool steel that has been hardened and ground on all six sides, providing a hard, wear‑resistant surface that maintains its geometry over time.

How do I verify the tolerance of the matched pair?

Use a calibrated micrometer or a high‑resolution CMM to measure the distance between the mating faces of the two blocks. The measured difference should not exceed 0.0003 in, confirming the matched‑pair tolerance.

Can the blocks be used with coolant or lubricants?

Yes, the hardened steel surface is compatible with common shop floor coolants and lubricants. After cleaning, simply wipe the block with a lint‑free cloth to remove any residue.

What is the recommended storage condition?

Store the blocks in a dry, temperature‑controlled environment away from direct sunlight. Keeping them in a protective case helps prevent accidental damage and maintains their calibrated condition.

Do you offer custom sizes or hole configurations?

While the standard 1/2‑hole configuration meets most industry needs, we can discuss custom machining options for specific applications. Contact our sales team for details and lead times.