waltyotur 1 x 2 x 3 Inch Block 23 Hole Block Set Super Precision with Screw Hex Key for Milling Machine with Plastic Housing

1 x 2 x 3 Inch Block 23 Hole Block Set Super Precision with Screw Hex Key for Milling Machine with Plastic Housing

Feature:
Made of high-quality materials, durable and corrosion-resistant
Cross-drilled design provides minimum weight and maximum strength
Sides are precision ground, centred and 56 to 60 RC
For setup, layout and inspection work

Specification:
Flatness and parallelism within 0.0001"
Each side is within 0.0003" of perpendicularity
Tolerance for matching to 0.0002"

Package includes:
2 x 1-2-3 Block
5 x 5 x 3/8-16 stainless steel socket head cap screws
1 x A Hex Key