Bun

I'm trying to route 3/4" MDF board for a slot car track. Plans call for 1/16 routes in board. I'm constantly breaking router bits. The bits I'm using are high speed bits.I dont get very far before they break. I've already broken 5 and I havent made 1 1/2 curves yet.Can't find any carbide tipped around anywhere.Is this the answer or what? MDF is what was called for in the plans.

drcollins804

I would think that you would do better with carbide. Invest in a good one but you may be trying to cut too much in one pass, try to cut the slot in two or three passes going a little deeper on each pass. If you do this and go slower the HSS bits might work but I still think carbide will work better for you in the MDF.

Jack Brannon

I would agree that you are trying to go too fast and too deep on each pass. The size bit you are using will not take very much forcing at all.

pianoman

I`m an old slot racer myself... try to find a three fluted bit... have to agree with the carbide. What kind of a guide are you using? I still have my old 1/24th scale slot cars I made from scratch... and they still work! Rick

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cabinetman

You said 1/16 routes. Is that width, or depth? How wide a slot, and how deep are ya going?