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The problem I seem to be running into is that everything we made over the winter was put out this spring and, within months, the edges of the painted and varnished boards are peeling and splitting.

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Michael Dresdner: Straight bits cut clean and fast, but tend to grab and will “lead” the router, making it tough to control. Spiral bits cut clean, but not as fast. They don’t grab or lead as much, so they are far better for freehand pattern routing (if you do that sort of thing) or in situations where grabbing can be a problem. Upcut spirals may chip the top edge of a cut, especially if it is brittle (like wenge wood) or if it is veneer. However, they cut a clean slot and eject the chips upward and out of a groove. Downward spirals leave a very clean top surface, but push the sward workpiece cuttings, chips, dust, oil, grain particles] downward. They will clog in a closed cut, such as cutting a deep groove the same width as the cutter. You’ll have to stop and clean out the chips frequently. Straight bits cut on the side. Mortising bits also cut on the end (for plunging.) Yes, a straight bit with a guide will give you the same kind of cut as a rabbeting bit, though not necessarily as clean a cut. If you have a lot of rabbeting to do, you’d be wise to invest in a good rabbet bit.

Q: 1. Are you a trading company or manufacturer?A: Our company is a professional producer with more than 14 years experience in this field.Q: 2. Do you provide samples? Is it free or extra?A: Yes, we could offer free samples for testing as support, clients will just need pay the sample deliver cost fee only.Q: 3. Can you produce Special Carbide Tools?A: Yes, we can. And we have our own professional R&D team that we could produce according to your drawing or sample.Q: 4. What's your MOQ?A: 100 pieces.Q: 5: How about the shipping cost?A: lf your goods is not large, we can send goods to you via express, such as FEDEX,TNT,etc.lf your goods is large, we will send to you via sea or air, we can quote the price base on EXW, FOB, as you like.then you can choose whether use our forwarder or yours.Q: 6. How long is the delivery time?A: Stock product: We have stock for some regular product, we can send them immediately once order confirmed. For Non-stock product: Within 15-20 daysQ: 7. Is your product customized or standard?A: We have the regular product and also have rich experience for customized parts.We have many success projects that make the product based on your own designs.Q: 8. How can I place the order ?A: Please send an inquiry sheet or contact our sales staff directly.

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Lee Grindinger: For rabbeting, use a straight bit. For deep plunges, such as mortises, use an upcut; it will clear the waste better but will not leave a clean entry wound. For very clean entry wounds, use a downcut; they leave very clean cuts but don’t clear the waste as well as an upcut. The spiral shapes are there to clear the waste. Bits are dulled much quicker when they are having to re-cut waste, so removing waste is good for the bit and speeds cutting rates.

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I’ve heard of spiral upcut, spiral downcut, straight, mortising, and rabbeting bits! When should I choose a spiral bit over a straight bit, and when do I choose an upcut over a downcut? What’s the difference between a straight and mortising bit? Will a straight bit with an edge guide give me the same kind of rabbet as a rabbeting bit? I’ve got a lot of stop dadoes and some long rabbets to make on my next project, and I will likely be using the router for most of this. Just want to make sure I’m using the right bits.