Hi, Guest Login Register. Spiral bits for router voltage [ 1 ] Go Down. Author Topic: Upcut or downcut spiral spiral bits for router voltage for router table? Read times. Neal W Posts: My experience with router bits straight bits in particular is with the typical two flute or one flute straight bits.

I will use them both in handheld applications, and in a router table. Mostly they will be for Dadoes. Should I be looking at up cutting spiral bits for router voltage down cutting bits? Turning perfectly good lumber into scrap and sawdust for more than 20 years!

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Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice. You likely want an upcut bit. It will pull the chips up towards the router, which gives you better control in both handheld and table routing situations.

Birdhunter Posts: Woodworker, Sportsman, Retired. I agree with the above unless I am routing plywood. The upcut bits can lift the top layer up Roseland Posts: I only ever use upcut or straight. Upcut clear the dust out of a spiral bits for router voltage quicker, so I prefer them when routing solid wood.

But like the other spiral bits for router voltage says, they can delaminate ply, so then I use straight cutters or go very gently. Dick Mahany Posts: This video does a nice job of explaining the benefits of different spiral bits. RKA Posts: It depends on what you're doing. The case for downcuts is to preserve the integrity of the face when dealing with material prone to tear out or chip out. Spiral bits for router voltage, when using a bearing guided bit and template on the router table I'll use a downcut with the bearing on the bottom of the spiral bits for router voltage which is probably the most frequent application I find for these bits.

The template serves as a support to eliminate tearout on that side of the work piece. ElectricFeet Posts: So while for freehand an upcut will send dust upwards towards your dust collection, it will send the dust under the table spiral bits for router voltage mounted on a table. You might also want to look at compression bits, which have both upward and downward spirals.

You have to be careful about getting the heights right so that both spirals can engage on the edges. In theory I have no experience on this both edges come out clean. I watched them all the other day — very useful before buying. Cheese Posts: Here's an example of a dado in maple ply using a Whiteside downcut spiral bit. This dado was made in a single pass. Quote from: Cheese on August 13,PM.

Mario Turcot Posts: Have you also consider Spiral Compression Bits? More expensive but they are worth the price. Solid carbide compression spiral bits designed for CNC spiral bits for router voltage requiring high feed rates and a clean finish. Special unique carbide for longer lifetime in abrasive material. Designed for CNC applications requiring high feed rates and a clean finish.

Particularly suitable for double sided melamine or laminated material. To me this is the best type of bit when it comes to do hand free pockets. Dick Mahany just put it in my handheld router this morning and it does a great job.

Smoother cutting and a great finish on the cut. Here's the one I'm using. Quote from: Roseland on August 15,PM. Thanks for all of the very useful responses. I purchased two whiteside compression bits for my projcect. They were certainly an upgrade from the two flute straight cutters I had been using.

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