Ask Frowse

BL-123NH Ultra Precision 1-2-3 Machinist Blocks – Matched Pair

An exceptional choice for precision machining at an affordable price.

Frowse Rating9.1/10

This matched pair of 1-2-3 blocks is designed for precision machining tasks. Made from high-quality tool steel, they are heat treated and hardened to provide exceptional accuracy and squareness. Ideal for machining setups, these blocks ensure reliable measurements and stability during use.

  • Dimensions: 1″ x 2″ x 3″; Weight: 3.5 lbs
  • Heat treated and case hardened to HRC 57-62
  • Accuracy within .0001″-.0002″ on all sides
Buy Now

As an Amazon Associate, Frowse may earn from qualifying purchases.

Frowse Rating 9.1/10

Best for: Machinists and hobbyists

Our Review

The BL-123NH Pair of 1 is an exemplary choice for those in need of reliable precision measuring tools. Designed with a heat-treated, case-hardened steel construction, these blocks demonstrate remarkable durability and rigidity, making them suitable for various machining tasks. The blocks are versatile enough to serve multiple functions, including setups as well as weights, further enhancing their usability in different machining environments.

For anyone seeking affordable but high-quality precision blocks, the BL-123NH stands out as an excellent investment.

What we like

  • Exceptional accuracy within .0002 inches
  • Durable heat-treated construction
  • No holes for easy cleanup
  • Versatile for multiple setup uses
  • Affordable compared to competitors

Our verdict

An exceptional choice for precision machining at an affordable price.

Product Details

Product Details

The BL-123NH Ultra Precision 1-2-3 Machinist Blocks are a matched pair crafted for high-precision machining applications. Each block is made from precision-grade tool steel, ensuring durability and reliability in industrial settings.

Specifications

  • Dimensions: 1″ x 2″ x 3″
  • Weight: 3.5 lbs
  • Heat treated and case hardened to a hardness rating of HRC 57-62
  • Hardened and ground on all six sides for enhanced accuracy
  • Squareness and accuracy maintained within .0001″-.0002″ on all sides
ASIN:
B000P496VU
Brand:
1-2-3 Blocks
MPN:
BL-123NH

Ready to check the current Amazon listing?

View on Amazon