Think & Tinker, Ltd.
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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

Please note that if your machine doesn't support the listed RPM that doesn't mean you can't use the tool.

To calculate your feed, multiply your RPM by the the total chipload listed.

Example: If your are using the 0.80mm tool from below and your max RPM is 20k then:

20000 * 0.00033 = 6.6 inches per minute

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
Size Diameter
(Inch)
Table-Feed-Rate
(Inches/min)
Speed
(k-rpm)
Total Chipload
(thou)
Plunge-Feed
(Inches/min)
Z-Axis-Offset
(Inches)
Part Number
0.80mm 0.0315 20 60 0.33 20 -0.020 RCD08-0315-020F
0.90mm 0.0354 25 60 0.42 20 -0.020
1.00mm 0.0394 30 58 0.52 20 -0.020 RCD08-0394-026F
1.10mm 0.0433 30 53 0.57 25 -0.020 RCD08-0433-026F
1.20mm 0.0472 35 49 0.71 25 -0.025 RCD08-0472-026F
1.27mm 0.0500 35 46 0.76 25 -0.025 RCD08-0500-026F
1.30mm 0.0512 40 45 0.89 25 -0.025
1.40mm 0.0551 40 42 0.95 25 -0.025
1.50mm 0.0591 40 39 1.03 25 -0.030 RCD08-0591-032F
1/16” 0.0625 40 37 1.08 25 -0.030 RCD08-0625-032F
1.60mm 0.0630 40 36 1.11 25 -0.030 RCD08-0630-032F
1.70mm 0.0669 45 34 1.32 25 -0.030
1.80mm 0.0709 45 32 1.41 25 -0.035 RCD08-0709-032F
1.90mm 0.0748 45 31 1.45 25 -0.035 RCD08-0748-032F
2.00mm 0.0787 45 29 1.55 25 -0.035 RCD08-0787-032F
2.10mm 0.0827 45 28 1.61 25 -0.040
2.20mm 0.0866 45 26 1.73 25 -0.040
2.30mm 0.0906 50 25 2.00 25 -0.040
3/32” 0.0938 50 24 2.08 25 -0.045 RCD08-0938-039F
2.40mm 0.0945 50 24 2.08 25 -0.045 RCD08-0945-039F
2.50mm 0.0984 50 23 2.17 25 -0.050 RCD08-0984-039F
2.55mm 0.1004 50 23 2.17 25 -0.050
3.00mm 0.1181 50 19 2.63 25 -0.055 RCD08-1181-039F
3.10mm 0.1220 50 19 2.63 25 -0.060
3.175mm 0.1250 50 18 2.78 25 -0.060 RCD08-1250-047F