Think & Tinker, Ltd.
CNC router bits and carbide cutting tools with tutorials and technical guides

RCD08 Diamondcut Router Bits Feeds and Speeds for Double-sided Copperclad FR-4 and Carbon-fiber Composites

This feeds and speeds table was compiled routing premium grade double-sided 1-ounce (37micron) copperclad with a 0.059" (1.5mm) thick FR-4 core using RCD08 family diamondcut router bits. The data can also be applied to cutting carbon-fiber composites, but shorter tool lives should be expected.

Extension of this data to other substrates and/or router bits from other manufacturers should be undertaken with caution

To insure optimum tool life and the best quality of cut, please run a sweet-spot test on all new materials!

Carbide diamond-cut router bits for PCB contouring, PCB depaneling, carbon fiber contouring and composite cutting

Product Pages
Chip-breaker
Fish-tail		 Chip-breaker
Drill-point		 Diamond-cut
Fish-tail		 Diamond-cut
Drill-Point

Size Diameter Table-Feed-Rate Speed Plunge-Feed Z-Axis-Offset
(inch) (Inches/min) (k-rpm) (inches/min) (inches)
0.80mm 0.0315 15 60 20 -0.020
0.90mm 0.0354 15 55 20 -0.020
1.00mm 0.0394 20 55 20 -0.020
1.10mm 0.0433 25 50 25 -0.020
1.20mm 0.0472 30 47 25 -0.025
1.27mm 0.0500 35 46 25 -0.025
1.30mm 0.0512 35 45 25 -0.025
1.40mm 0.0551 35 40 25 -0.025
1.50mm 0.0591 35 38 25 -0.030
1/16” 0.0625 40 36 25 -0.030
1.60mm 0.0630 40 36 25 -0.030
1.70mm 0.0669 40 34 25 -0.030
1.80mm 0.0709 40 34 25 -0.035
1.90mm 0.0748 40 30 25 -0.035
2.00mm 0.0787 40 27 25 -0.035
2.10mm 0.0827 40 27 25 -0.040
2.20mm 0.0866 40 25 25 -0.040
2.30mm 0.0906 40 25 25 -0.040
3/32” 0.0938 40 24 25 -0.045
2.40mm 0.0945 40 24 25 -0.045
2.50mm 0.0984 40 22 25 -0.050
2.55mm 0.1004 40 22 25 -0.050
3.00mm 0.1181 40 20 25 -0.055
3.10mm 0.1220 40 20 25 -0.060
3.175mm 0.1250 40 20 25 -0.060