Description
Precision 1-2-3 Blocks Matched Pair
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Premium hardened steel machinist setup blocks engineered for precision milling, grinding, inspection, fixturing, and CNC machining applications. Ground on all six sides for exceptional accuracy, durability, and reliable performance in demanding workshop environments.
Core Advantages
✔ Hardened & Precision Ground Tool Steel
Manufactured from high-grade hardened steel and precision ground on all six sides, providing outstanding wear resistance, dimensional stability, and long-term durability.
✔ Exceptional Accuracy & Squareness
Each block is precision machined with accuracy and squareness maintained within 0.0002" per inch, ensuring dependable results for setup, inspection, and machining tasks.
✔ High Hardness for Industrial Applications
Heat-treated and case-hardened to HRC 57–62, delivering excellent strength, rigidity, and resistance to deformation under demanding machining conditions.
✔ 23-Hole Multi-Purpose Design
Each block features 23 precision-drilled holes, including 5 threaded 3/8"-16 holes for clamping and 18 untapped 9 mm holes for versatile fixturing and workholding applications.
✔ Lightweight Cross-Drilled Construction
Cross-drilling design reduces overall weight while maintaining maximum structural strength, making the blocks easier to handle without compromising performance.
✔ Versatile Workshop Applications
Ideal for milling machines, CNC machining, grinding, inspection, layout work, fixturing, clamping, setup operations, and precision measurement tasks.
Specifications
| Item |
Details |
| Product Type |
Precision 1-2-3 Blocks |
| Material |
Hardened Tool Steel |
| Dimensions |
1" × 2" × 3" |
| Quantity |
2 Blocks (Matched Pair) |
| Hardness |
HRC 57–62 |
| Accuracy |
±0.0002" per inch |
| Surface Finish |
Precision Ground on All 6 Sides |
| Threaded Holes |
5 × 3/8"-16 |
| Untapped Holes |
18 × 9 mm |
| Hole Quantity |
23 Holes per Block |
| Weight |
Approx. 2.1 lbs per Pair |
| Design |
Cross-Drilled Lightweight Structure |
Applications
• CNC Machining Setup
• Milling Machine Operations
• Surface Grinding
• Precision Inspection
• Fixture Building
• Workpiece Positioning
• Clamping & Workholding
• Machine Shop Layout Work
FAQ
Q1: What material are the blocks made from?
These blocks are manufactured from hardened tool steel and precision ground on all six sides for maximum durability and accuracy.
Q2: What is the accuracy of the blocks?
The blocks provide squareness and dimensional accuracy within 0.0002" per inch.
Q3: What are the threaded hole specifications?
Each block includes 5 threaded holes with a 3/8"-16 thread size for clamping and fixture applications.
Q4: What are the untapped holes used for?
The 18 untapped 9 mm holes allow flexible positioning, fixturing, and custom workholding setups.
Q5: What machining applications are these blocks suitable for?
They are suitable for milling, grinding, CNC machining, inspection, measurement, fixturing, and general machine shop setup work.
