Description
2-4-6 Blocks Matched Pair with 23 Holes
Highlight
Precision-ground machinist setup blocks manufactured from hardened tool steel for milling, grinding, inspection, layout, and fixturing applications. Engineered for exceptional accuracy, strength, and durability, these 2" × 4" × 6" blocks feature a versatile 23-hole design for flexible workholding and setup operations.
Core Advantages
✔ Precision Ground Tool Steel Construction
Manufactured from accuracy-grade tool steel and precision ground on all six sides to provide outstanding dimensional stability, wear resistance, and long service life.
✔ Heat Treated for Maximum Durability
Heat-treated and case-hardened to HRC 57–62, delivering superior hardness, rigidity, and resistance to deformation in demanding machine shop environments.
✔ High Accuracy & Matched Pair Tolerance
Overall dimensions are held within ±0.0003", while flatness, parallelism, and squareness are maintained within 0.0003". Each matched pair is precision-matched to a tolerance of 0.0002".
✔ Versatile 23-Hole Design
Each block features 23 precision-machined holes, including 5 threaded 3/8"-16 holes and 18 untapped through holes, providing multiple options for clamping, fixturing, and positioning workpieces.
✔ Lightweight Cross-Drilled Structure
Cross-drilling design significantly reduces weight while maintaining maximum structural strength, making the blocks easier to handle without sacrificing rigidity.
✔ Ideal for Precision Machining Applications
Suitable for milling, grinding, CNC machining, inspection, layout work, fixture building, alignment, and precision measurement tasks.
Specifications
| Item |
Details |
| Material |
Hardened Tool Steel |
| Dimensions |
2" × 4" × 6" |
| Quantity |
2 Blocks (Matched Pair) |
| Hardness |
HRC 57–62 |
| Overall Accuracy |
±0.0003" |
| Flatness & Parallelism |
0.0003" |
| Squareness |
0.0003" |
| Matching Tolerance |
0.0002" |
| Hole Quantity |
23 Holes per Block |
| Threaded Holes |
5 × 3/8"-16 |
| Untapped Holes |
18 Through Holes |
Applications
• Milling Machine Setup
• CNC Machining
• Surface Grinding
• Precision Inspection
• Workpiece Positioning
• Fixture Building
• Clamping & Workholding
• Layout & Measurement Tasks
Package Includes
2 × Precision 2-4-6 Blocks with 23 Holes
FAQ
Q1: What material are the blocks made from?
The blocks are manufactured from accuracy-grade hardened tool steel and precision ground on all six sides.
Q2: What is the hardness rating?
The blocks are heat-treated and case-hardened to HRC 57–62 for enhanced wear resistance and durability.
Q3: How accurate are these 2-4-6 blocks?
Overall dimensions are maintained within ±0.0003", with flatness, parallelism, and squareness within 0.0003". The matched pair tolerance is 0.0002".
Q4: What are the hole specifications?
Each block contains 23 holes, including 5 threaded 3/8"-16 holes for clamping and 18 untapped through holes for versatile fixturing applications.
Q5: What machining operations are these blocks suitable for?
They are ideal for milling, grinding, CNC machining, inspection, setup work, alignment, fixture building, and precision measurement applications.
