Value Collection 630-4330 Angle Block 30 Degree 55 Hrc

Product Description

The VALUE COLLECTION 630-4330 is a hardened steel angle block used to establish precise angular reference surfaces in machining, grinding, and inspection setups. Measuring 3 inches in overall length and ground to a 30-degree angle, this block delivers an accuracy of 20 arc-seconds, making it suitable for demanding layout and fixturing work. At a hardness of 55 HRC, the contact surfaces resist wear through repeated use in production and toolroom environments. Machinists, toolmakers, and quality-control technicians use angle blocks as workholding and referencing aids on surface plates, magnetic chucks, and milling fixtures.

This angle block is well suited for both production shops and toolrooms that require repeatable angular setups without the setup time of a sine bar. Common applications include grinding a precise bevel on a workpiece, referencing parts for CMM inspection, and holding components at a fixed angle during milling or EDM operations. The compact 3-inch length fits standard vises and chuck configurations found in most machine shops.

Key Features

• 30-degree reference angle ground to 20 arc-second accuracy for precise angular setups
• 55 HRC surface hardness resists wear and maintains accuracy over extended service life
• 3-inch overall length fits standard vises, magnetic chucks, and surface-plate setups
• Compact single-block design simplifies fixturing versus multi-component sine bar arrangements

Compatibility

Designed as a general-purpose 30-degree angle reference block compatible with standard surface plates, magnetic chucks, and machining fixture setups common in toolroom and production environments.

Installation Notes

Angle blocks are positioned and secured by a toolmaker or machinist and do not require power tools or utility shutoff procedures. Ensure the reference and seating surfaces are clean and free of burrs or chips before use, as debris will introduce angular error. When used on a magnetic chuck, verify that the block is fully seated and the chuck is energized before engaging the workpiece. Handle hardened blocks with care to avoid chipping the precision-ground surfaces.