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Thread: Banggood Router Bits - any good?
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30th May 2020, 08:42 PM #16Senior Member
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I'm not seeing much difference between the Banggood one I linked to and this planing router bit from Torquata at Timbecon - https://www.timbecon.com.au/torquata...ing-router-bit - am I missing something?
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30th May 2020, 10:38 PM #17Woodworking mechanic
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This is my planing cutter. What you can see is a back relief on both the side and the bottom of the cutter which means the bit can cut with both surfaces.
It maybe the photo but it’s hard to see any back relief on the bottom of the cutter on the Banggood bit.
46451E30-791E-40CF-A83B-EC281FB38A28.jpg3962AB17-3F80-4E09-91EF-5A1874503972.jpg
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30th May 2020, 10:56 PM #18GOLD MEMBER
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Yep. Look at the angle of the cutting surfaces to the shank. The one you've linked to has a large positive 'hook' angle on the vertical face while the Timbecon one has totally different geometry that is much more clearly directed to the flat upper cutting surface, including a eased front edge and a relief between the leading edge and the following edge of the horizontal carbide tips. The Banggood one you linked to would tear the timber to bits and send the router flying.
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30th May 2020, 11:56 PM #19GOLD MEMBER
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This is what a good planing surfacing cutter looks like.
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31st May 2020, 12:03 AM #20GOLD MEMBER
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The pictured cutter is a fly cutter, it’s for cutting grooves in edges of flat panels or boards, typically a groove in the bottom of a sliding door to take a floor guide. They work well because the baseplate of the router is running on the flat face of the panel, rather than trying to keep the router square on a thin edge. But, the pictured cutter is inherently dangerous, as the angle of attack of the cutting tips is very acute, it would grab and bite hard, making the router difficult to control.
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31st May 2020, 12:10 AM #21GOLD MEMBER
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I
the other important part of this cutter ( it’s the exact same as mine) is that it has plenty of body behind the cutting tip, which not only makes it strong, but because it extends back towards the next tip, it limits the amount of chip that can be removed, stopping the cutter tearing out too much and wanting to rip the router backwards, towards the poor bugger holding it. Here’s a tip- NEVER, EVER, back cut with one of these cutters, it will bite you, hard.
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31st May 2020, 12:31 AM #22Senior Member
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Cheers everyone - still learning obviously!
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31st May 2020, 12:42 AM #23GOLD MEMBER
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31st May 2020, 01:24 AM #24Senior Member
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31st May 2020, 01:33 AM #25Senior Member
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31st May 2020, 09:40 AM #26Woodworking mechanic
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That pictured cutter is mine. I bought it from Carbitool - I linked to it in an earlier post.
Heres the link
6 Flute - Surface Planer - Carbide Tipped - Carbitool
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31st May 2020, 10:14 AM #27GOLD MEMBER
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Why would you want to cut a >35mm deep groove in the bottom of a door. Even if you did want to a spiral cutter with suitable base support for the router and guide would be so much safer. If using a grooving cutter of that style the baseplate of the router might be running on the flat face of the panel, but only if you manage to complete the cut without tilting the router, very difficult to do with a hand held router when using an aggressive bit.
You don't have to convince me how dangerous that cutter is.
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31st May 2020, 01:04 PM #28Senior Member
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The Amana Amana Tool RC-2263 Heavy Duty CNC Spoilboard Insert Carbide 3 Wing Plunging, Surfacing, Planing, Flycutting & Slab Leveler 2-3/4 D x 53/64 CH x 1/2 SHK Router Bit, Includes RCK-459 (3) looks to be the ultimate choice for a slab flattener, but you need to buy three of the Amana Tool RCK-457-DLC SC 4 Cutting Edges Diamond-Like Carbon (DLC) Coated Insert Knife for Solid Wood 12 x 12 x 1.5mm x 45 Degree at $53 each as well which bumps the overall price up to over $450 + shipping.
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31st May 2020, 01:07 PM #29Woodworking mechanic
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When I was making my outdoor table, I had to cut a recessed groove in the frame to take the recycled floor boards. I used that planing cutter I linked to, to do the job with the cutter safely mounted in the router table.
That cutter allowed me to increase dimension A. When I rang Carbitool with my query about what to use to do the job, that was the bit they recommended.
CA2B2F7F-1A69-4C7F-9B51-41B0DB5F30AC.jpg
Before I got my thicknesser, I also used it to plane down the tendon stock for my loose tenons for the same table. That was scary - never again.
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31st May 2020, 02:15 PM #30GOLD MEMBER
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That's hugely more expensive than the one I linked to, and the price of the inserts is absolutely ridiculous. No hobbyist could justify that. That head also offers a lot of things you don't need, plunging for example. It looks like the surfacing is done by only the 5/64" (2mm) edge on the inserts, that can't be good for their longevity.
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