Quotes (0) All Categories > Turning Blanks > Square Negative > Square Negative Cutting Tool Inserts with Dbl ISO Countersinks > part no. (example: VNRA321) 21.001800.100.2 All CategoriesAll Categories Turning BlanksTurning Blanks Square NegativeSquare Negative Square Negative Cutting Tool Inserts with Dbl ISO CountersinksSquare Negative Cutting Tool Inserts with Dbl ISO Countersinks part no. (example: VNRA321) 21.001800.100.2 part no. (example: VNRA321) 21.001800.100.2, 0.322/0.330 Inch (in) Thickness (t) Square Negative Cutting Tool Insert with Dbl ISO Countersink 21.001800.100.20.322/0.330 Inch (in) Thickness (t) Square Negative Cutting Tool Insert with Dbl ISO Countersink Request Information Email This Page Download PDF Download PDF Printable Page /Asset/NAC42-MOD.jpg /Asset/NAC42-MOD.jpg Close Window Unit of Measure Imperial Metric Both Classifications | dimensional specification Classifications Brands N/A Ultra-Met® Shape N/A Square dimensional specification Inscribed Circle (i.c.) N/A 0.639/0.645 in Thickness (t) N/A 0.322/0.330 in Hole (h) N/A 0.226/0.230 in TO N/A 0.292/0.298 in CB N/A 0.065 in