Description
Product Overview
The 2‑3‑4 Blocks Matched Pair 23 Hole V Blocks from TINVHY are engineered to meet the rigorous demands of modern machining and calibration environments. Constructed from precision‑ground hardened tool steel, each block undergoes a heat‑treatment process that raises the surface hardness to HRC 57‑62, ensuring exceptional wear resistance and long‑term dimensional stability. The blocks are machined to a tight tolerance of .0002 inch squareness on all six faces, providing a true reference surface for setting up workpieces, aligning fixtures, and verifying machine accuracy. With a compact footprint of 2 × 3 × 4 inches and a weight of 10.93 pounds, they are easy to handle yet robust enough to withstand the forces encountered during clamping and inspection. The cross‑drilled design reduces material mass while preserving structural integrity, and the integrated 23‑hole pattern—featuring five 5/8‑11 tapped holes and eighteen untapped holes—offers versatile mounting options for a wide range of accessories, clamps, and test fixtures.
![[Product front view showing all components]](https://www.acego.store/wp-content/uploads/2026/07/167601cbf6b345bcb0bacd09b55d5471.jpg)
Usage
These V blocks excel in a variety of shop floor applications. In CNC machining, they serve as reliable datum surfaces for aligning workpieces before milling, drilling, or turning operations, guaranteeing repeatable part geometry. In jig building, the 23‑hole configuration allows rapid attachment of clamps, brackets, and locating pins, reducing setup time and improving repeatability. Calibration technicians use the blocks to verify the squareness of machine tables, rotary axes, and linear guides, taking advantage of the .0002‑inch tolerance to detect minute deviations. The hardened steel construction also makes the blocks suitable for high‑temperature environments, such as heat‑treatment furnaces, where dimensional stability is critical. Because the blocks are lightweight yet sturdy, they can be easily repositioned during multi‑step processes without sacrificing precision.
Why Choose Us
TINVHY combines decades of metallurgical expertise with modern CNC machining to deliver V blocks that outperform generic alternatives. Each block is inspected with laser‑based metrology to confirm squareness and hardness specifications before packaging, ensuring that every customer receives a product that meets or exceeds industry standards. Our commitment to quality extends beyond the manufacturing floor; we provide a comprehensive warranty and responsive technical support to address any installation or performance questions. The cross‑drilled architecture not only minimizes weight but also enhances rigidity, delivering a superior strength‑to‑weight ratio that is especially valuable in portable or space‑constrained workstations. By choosing TINVHY, professionals gain confidence that their calibration tools will maintain accuracy over years of intensive use, reducing downtime and re‑work costs.
Key Features
- Hardening to HRC 57‑62 delivers exceptional durability for demanding shop floor use
- .0002‑inch squareness on all faces ensures true reference geometry for precise setups
- 23‑hole pattern with five tapped holes provides flexible clamping options for diverse fixtures
- Compact 2 × 3 × 4 inch size balances portability with robust performance
- Dedicated TINVHY technical support and warranty give peace of mind for long‑term projects
FAQ
What material are the blocks made from?
The blocks are fabricated from precision‑grade tool steel that is heat‑treated and case‑hardened to a hardness range of HRC 57‑62, providing high wear resistance and dimensional stability.
How accurate is the squareness of each block?
Each face of the block is ground to a tolerance of .0002 inch, guaranteeing true squareness for high‑precision alignment and calibration tasks.
Can the tapped holes accommodate standard clamps?
Yes, the five 5/8‑11 tapped holes are compatible with most standard clamps and fixtures, allowing quick and secure mounting in a variety of setups.
Is there a warranty or support available?
TINVHY offers a comprehensive warranty and responsive technical support to assist with installation, troubleshooting, and any performance questions you may have.
What are the typical applications for these V blocks?
They are ideal for CNC machine setup, jig building, dimensional calibration, inspection of machine tables, and any situation where a precise, hardened reference surface is required.
![Shars 1-2-3 Precision Matched .0002" Pair Blocks w/23 Hole Set 303-5500 P]-0](https://www.acego.store/wp-content/uploads/2026/07/770b2071306f4e0393d38f57d70cfe07-300x300.jpg)



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