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spiral-cut-router-bit-kernel Product Reviews. Necessary Necessary. Down-cut Bits cut slower spiral cut router bit kernel push chips away from the router to bi top surface splintering. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. But in a hand router, their use sometimes imposes unusual risks not associated with the equivalent or bigger straight bits.

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 cut quicker, so I prefer them when routing solid wood.

But like the other post 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.

Also, 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 bit 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: Spiral Cut Router Bit Key So while for freehand an upcut will send dust upwards towards your dust collection, it will send the dust under the table when 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 Upcut Spiral Router Bit Kernel 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 applications 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. Grouped product items test Item Product Name Shank. Out of Stock: Expected on: Notify me when back in stock Enter your email address to receive a notification when this item comes back in stock Submit Close. Add to Cart. In stock. Upcut or Downcut, which bit style should you choose? Questions and Answers. Product Reviews.

Related Products Check items to add to the cart or select all. Brass Template Guide Kit. Straight Router Bits. Top Bearing Pattern Router Bits. Login Register Registered Customers. If you have an account, sign in with your email address. Sign In. Forgot Your Password? Personal Information First Name. Last Name. Sign Up for Newsletter. Password Password Strength: No Password. Confirm Password. Create an Account.

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