MCRT28 is the 8 mm straight-cutter option with a 20 mm cutting length. The catalog label does not call this model a chip-breaker cutter. MCRT29 has the same stated size and carries that label.
Specifications
| Cutter type | TCT three-edge straight cutter |
|---|---|
| Shank | 1/2 in (12.7 mm) |
| Cutter diameter | 8 mm |
| Cutting length | 20 mm |
| Catalog option | TCT three-edge straight knife 1/2 * 8 * 20 |
Check the fit
Compare the two 8 x 20 mm models if the cutting profile matters to your setup. The product names describe the profile labels, but do not provide a measured difference between the cutting edges.
- Confirm that the router collet accepts the 1/2 in shank.
- Use the 8 mm diameter to check slot width and the 20 mm cutting length to check depth.
- Compare the straight-cutter image with MCRT29 before choosing the chip-breaker option.
- Secure the work. Follow router and cutter instructions for speed and feed, then test on scrap.
Limits in the listing
The drawing marks the cutter size and shank. The listing does not give an overall length, maximum speed, feed rate or router compatibility list. Check the machine manual for setup limits.
Images and dimensions



Compare related sizes: MCRT29 8 x 20 mm chip-breaker cutter; MCRT27 6 x 20 mm straight cutter. Browse Straight Router Bits.
For an unclear fit, send the model and a photo of the holder through BitsRouter contact.

















