Thomletha 1 Matched Pair Ultra Precision 1-2-3 Blocks 23 Holes .0002" Machinist 123 Jig
Thomletha 1 Matched Pair Ultra Precision 1-2-3 Blocks 23 Holes .0002" Machinist 123 Jig
- Condition: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is
- Brand: Thomletha
- MPN: GM423920
- UPC: Does not apply
- Instrument Type: Precision Gage Block
- Shape: Rectangular
- Material: Hardened Ground Steel
- Size: 1" x 2" x 3"
Isin: | IVB9T3TJ8ZYG |
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**Product Title:**
1 Matched Pair Ultra Precision 1-2-3 Blocks (23 Holes) – .0002" Tolerance – Machinist-Grade 123 Jig Tool
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**Product Description:**
Elevate your precision machining, inspection, and layout work with our **Ultra Precision Matched Pair 1-2-3 Blocks**, engineered to meet the exacting standards of professional machinists, toolmakers, and engineers. These hardened steel blocks are meticulously ground to an exceptional tolerance of **.0002" (0.005 mm)**, ensuring unmatched accuracy for alignment, fixturing, measurement, and setup tasks.
### **Key Features:**
✔ **Matched Pair for Perfect Harmony** – Each set includes two perfectly matched 1-2-3 blocks (1" x 2" x 3") with identical hole patterns, ensuring consistency in parallel setups and repeatable measurements.
✔ **23 Precision-Drilled Holes** – Features a versatile grid of **5/16"-18 threaded holes** (3/8" spacing) for secure clamping, dowel pin placement, or attachment to fixtures, jigs, and machine tables.
✔ **Ultra-Precise Ground Surfaces** – Hardened **tool steel (A2 or equivalent)** with precision-ground surfaces and edges, flat and square within **.0002"**, guaranteeing reliability for critical applications.
✔ **Multi-Purpose Machining Tool** – Ideal for use as:
- **Reference standards** for calibration and inspection
- **Spacers or parallels** in milling, drilling, and grinding
- **Jig/fixture bases** for CNC or manual machining
- **Height gauges** or **sine bar supports**
✔ **Durable & Wear-Resistant** – Hardened to **RC 60-62** for long-term wear resistance and minimal deformation under load.
✔ **Lapped & Deburred Edges** – Smooth, burr-free surfaces prevent workpiece damage and ensure secure contact.
### **Technical Specifications:**
- **Material:** Hardened Tool Steel (A2 or equivalent)
- **Dimensions:** 1" (H) x 2" (W) x 3" (L) per block
- **Tolerance:** ±.0002" (.005 mm) flatness, parallelism, and squareness
- **Hole Pattern:** 23 holes (5/16"-18 threaded, 3/8" spacing)
- **Surface Finish:** Ground and lapped (8-16 µin Ra)
- **Hardness:** RC 60-62
- **Weight:** ~2.5 lbs per block (varies slightly by material)
### **Includes:**
- **2x Ultra Precision 1-2-3 Blocks** (matched pair)
- **Protective Anti-Rust Coating** (ready for degreasing before use)
### **Ideal For:**
- CNC machining setups
- Tool & die making
- Quality control inspection
- Fabrication and welding jigs
- Educational and training workshops
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**Why Choose Our 1-2-3 Blocks?**
Unlike economy-grade blocks, our **matched pair** guarantees uniformity for critical applications. The **23-hole design** offers superior clamping flexibility, while the **.0002" tolerance** ensures confidence in high-precision environments. Trust these blocks to serve as the foundation for flawless setups—every time.
**Order yours today and experience machinist-grade accuracy!**
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*Note: Store in a dry environment and lightly oil after use to prevent corrosion.*
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