Ultra Precision Blocks Hole Machinist Setup Jig

Build cleaner, steadier, more accurate setups with 1-2-3 blocks made for serious shop work. This 5-pair set gives machinists, toolmakers, and metalworking pros dependable support for layout, inspection, clamping, and jig setup. Each block is hardened, ground on all sides, and designed for precise alignment when small errors can cost time. With 23-hole versatility and matched-pair consistency, these machinist setup blocks help make repeatable work feel easier.

Key Features

• Includes 5 matched pairs of precision 123 blocks for reliable setup work
• 23-hole design with threaded and untapped holes for flexible clamping
• Hardened tool steel construction for durability in demanding shop use
• Ground surfaces with ultra-tight 0.0002" approx accuracy and squareness
• Ideal 1" x 2" x 3" approx size for layout, spacing, inspection, and jig work
  
  

Why Choose Our 5 Pair Ultra Precision 1-2-3 Blocks 23 Hole Machinist Setup Jig Set
Unlike basic blocks made for light-duty use, this set is built for repeatable accuracy across multiple setups. The matched-pair format gives you more positioning options, while the 23-hole layout makes clamping and fixturing faster. It is a smart value for anyone who needs dependable blocks without buying pairs one at a time.

Perfect For
Machinists, metalworkers, toolmakers, CNC operators, inspectors, workshop owners, engineering students, and anyone building or checking precise fixtures. Great for milling, drilling, grinding, layout, measuring, spacing, squaring, and custom jig setup.

Make every setup more stable, accurate, and efficient with a block set built to support better work. Order your 5 Pair Ultra Precision 1-2-3 Blocks today and feel the difference in every precise adjustment.