Precision That Stays True!

“ More importantly, the tool and gauge guy at the factory checked them on his AA surface plate with proper indicators. In each plane they are parallel and square to within 0.0001 - total deviation. Absolutely nothing to sneeze at from any manufacturer.” - Mark P.

Why Get Our Ultra Precision 1-2-3 Blocks Set?

✅Extreme Accuracy and Precision: Cheap or worn-out 1-2-3 blocks can shift under pressure or give false readings, leading to inaccurate measurements. Tight tolerances matter for setups and quality control. These blocks provide 0.0001" precision on squareness, parallelism, and matched height, making them ideal for applications that demand absolute accuracy.

✅Smart Weight Reduction: The cross-drilled holes reduce unnecessary weight while keeping the structure rigid. This makes them easier to use during quick setups without sacrificing strength.

✅Versatile Mounting Options:  With 23 holes (5 tapped), these blocks give you multiple ways to clamp or bolt parts, offering better flexibility during complex setups.

📓FREQUENTLY ASKED QUESTIONS

Q: What is the weight of each block?

A: The weight of each block is not specified. However, the total weight of the pair of blocks is 2.8 pounds.

Q: Are the blocks heat treated?

A: Yes, the blocks are heat treated and case hardened to HRC 56-60.

⚙️ Specifications:

• Color: Silver

• Item Weight: 2.8 lbs,

• Accuracy:

• Squareness: ±0.0001"

• Parallelism: ±0.0001"

• Height matching (pair): ±0.0001"

• Compatibility: Useful for machinists, woodworkers, and metal fabricators who rely on dependable alignment tools.

• Product Dimensions: ‎8.08 x 5.2 x 1.85 inches

📦Package Inclusion: 

• 2 x Ultra Precision 1-2-3 Blocks

• 5 x Stainless steel socket head cap screws

• 1 x Hex key

• 1 x fitted case