Feature

●Material: Made of 40Cr steel, which is an alloy steel with good comprehensive mechanical properties and is currently one of the most widely used steels in the machinery manufacturing industry
●Dimensions and Accuracy: The three sides are 2, 4 and 6 respectively, the tolerance of size is about 0.0004, the squareness is 0.0003/1, the parallelism is 0.0003
●Holes: There are 23 holes in the block, 5 are threaded holes, which are used for clamping, the remaining 18 are untapped holes, 5 threaded holes are 5/8-11 in size, and the other 18 holes are 16mm in diameter
●Design: Precision grade tool steel was quenched and ground on all six sides of the block
●Features: Cross drilling design for minimum weight and maximum strength


Description

2-4-6 23-Hole Matched Precision Parallel Blocks, 40Cr Steel

Specification:
Hole: 23
Size: 2" x 4" x 6"
Material: 40Cr Steel
Hardness: HRC 55-62
Parallelism: 0.0003"
Squareness: 0.0003"/1"
Tolerance of Size: ±0.0004"
Thread Holes: 5 - (5/8"-11)
Untapped Holes: 18 - (16mm)

Features:
With 5 threaded holes (5/8"-11) for bolting, drilling, hammering or other purposes
This is a set of 246 parallel blocks containing two that you can use to assemble into other shapes
The parallel blocks are packed in cartons with a layer of rust-proof wax paper, which is easy to clean and has a good surface finish
Precision machine block milling machine, very suitable for machinists, woodworking, metal working work, accurate and easy to clean

Package Includes:
2 x 2-4-6 Precision Parallel Blocks

Note:
Do not store them in a humid environment, even if you do not use them, you should brush them regularly to prevent rust