Value Collection 630-4304 Angle Block 4 Degree 55 Hrc

Product Description

The VALUE COLLECTION 630-4304 is a hardened steel angle block used for precision setup, inspection, and machining operations. Machined to a 4-degree angle, this block provides a stable, repeatable reference surface for angular workholding, surface plate inspection, and toolroom layout tasks. At 55 HRC hardness, the working surfaces resist wear and maintain accuracy under repeated use. The block measures 3 inches in overall length, making it a compact and manageable reference tool on the bench or machine table. It is suited for use by tool and die makers, machinists, and metrology technicians who need consistent angular reference in a shop or quality-control environment.

This angle block is designed for toolroom and inspection applications where a fixed 4-degree angular reference is required. Typical use cases include setting up tilted workpieces on a milling machine, verifying angular features on finished parts, and supporting precision layout work on a surface plate. The compact 3-inch length fits standard vise and fixture setups without interfering with surrounding tooling. It is appropriate for both job shop and production environments where repeatable angular positioning is a routine requirement.

Key Features

• 4-degree fixed angle for consistent angular reference and setup
• 55 HRC hardness for wear resistance and long service life
• 3-inch overall length for compact bench and machine table use
• Accuracy rated to 20 arc-seconds for precision inspection and layout work
• Suited for surface plate work, milling setups, and toolroom inspection tasks

Compatibility

Designed as a general-purpose precision angle block suitable for use with standard surface plates, milling machine fixtures, and inspection setups requiring a fixed 4-degree angular reference.

Installation Notes

Angle blocks are positioned by hand and do not require power tools or mechanical fastening for most setup applications. Clean mating surfaces before use to prevent debris from affecting angular accuracy. When using on a surface plate, verify the plate and block surfaces are free of burrs or contamination. Secure the workpiece or block with appropriate clamps or magnetic chuck as required by the specific setup.