Quotes (0) All Categories > Turning Blanks > Diamond Negative > Diamond Negative with Hole > part no. CNRA660 All CategoriesAll Categories Turning BlanksTurning Blanks Diamond NegativeDiamond Negative Diamond Negative with HoleDiamond Negative with Hole part no. CNRA660 part no. CNRA660, Diamond Negative with Hole, thickness 0.390 / 0.398 in CNRA660Diamond Negative with Hole, thickness 0.390 / 0.398 in Request Information Email This Page Download PDF Download PDF Printable Page DOWNLOADS ultra-met grade offerings standard stock blank pricing /Asset/a1004.jpg 1 /Asset/a1004.jpg Close Window Variable thickness quoted on request. Unit of Measure Imperial Metric Both dimensional specification | grade availability dimensional specification Thickness (t) N/A 0.390 / 0.398 in Inscribed Circle (i.c.) N/A 0.764/0.770 in Radius (r) N/A 0 in Angle (a) N/A 80 º hole N/A 0.310 / 0.314 in grade availability Grade Availability N/A Available on Request