Do It Yourself: How to Grind Parting and Grooving Tools

Blanks

Straight blanks for grinding parting tools are available in 9 widths from 2.3–11.6 mm (0.091–0.457 inch). These blanks have flat tops, which allow for the grinding of many different shapes.

90° blanks in R/L versions are also available, mainly for use in the aerospace industry.

Tool holder

When grinding, a standard tool holder is a suitable fixture; the recommended setting angles for the grinding wheel are shown below.

Grinding wheel properties

• Grain size: US Mesh 170–240 (75–55 mm)
• Binder: Metal
• Concentration: 75–100 abrasive volume

Solutions for different products and applications can be made, see the example below.

Recommended setting angles for the grinding wheel