10Pcs 3" x 1/8" Accuracy Parallel Block Set, 40Cr Steel

Specification:
Parallelism: 0.0002"
Material: 40Cr Steel
Hardness: HRC52-58
Tolerance of Size: 0.0003"
Hole Size: 13/64", 1/4", 5/16", 3/8", 7/16", 1/2"
Size: 3" x 1/8" x (1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-5/8")

Features:
Used for installation, layout and inspection work
This product is equipped with wood box, easy to store and carry, not easy to mess or lost
Accuracy parallel block suitable for machinists, woodworking, metal working work, accurate and easy to clean

Package Includes:
10 x Accuracy Parallel Block