Re: Spiral upcut/downcut router bits

I have not seen any dedicated for the routers, but I am using mill ends and they seem to look the same and they perform well. Until I get a real spiral bit I cannot really tell if its the same... of course make sure the shank size is correct to begin with... 😀

Re: Spiral upcut/downcut router bits

This is one of the best router bit I own. I love the way it cuts, very clean and the bit itself is real sharp. The weight and appearance of the tool says something that it's top notch quality. Solid Carbide.

http://www.amazon.com/gp/product/B000P4LO2Y/ref=ox_ya_os_product

It's also long enough to use for RT jointing task.

Re: Spiral upcut/downcut router bits

@jay,

ala pa ako downcut or upcut spiral bit and relies mostly on endmills for routing grooves etc..end mills have this habit of being choked especially so on mdf and it is advisable to make several light passes.

but those downcut/upcut spiral bits are gorgeous and definitely on my wishlist!

Re: Spiral upcut/downcut router bits

bagay na bagay sa 3612c,recommended for making mortises,a bit expensive for a router bits pero also on my wish list.

Re: Spiral upcut/downcut router bits

You can try looking up Artbase Corporation

Rm. 507 Makati Executive Center
Alfaro corner Herrera sts. Salcedo Village, Makati
Tel. 818-9745

I haven't bought router bits from them for some time but their the distributor of the Trend brand of router bits for England.

Hope this helps.

Re: Spiral upcut/downcut router bits

You can try looking up Artbase Corporation

Rm. 507 Makati Executive Center
Alfaro corner Herrera sts. Salcedo Village, Makati
Tel. 818-9745

I haven't bought router bits from them for some time but their the distributor of the Trend brand of router bits for England.

Hope this helps.

Thanks bro, next question is "are you joining us bukas sa get together?" 😀

Re: Spiral upcut/downcut router bits

@jay,

ala pa ako downcut or upcut spiral bit and relies mostly on endmills for routing grooves etc..end mills have this habit of being choked especially so on mdf and it is advisable to make several light passes.

but those downcut/upcut spiral bits are gorgeous and definitely on my wishlist!

I purchased just to try it because it was on sale for $32. I did not expect it to be that good. Given another sale chance I would like to get a downcut spiral bit too. Chisel was saying that the upcut bit is best used for mortising.

When do you actually use a downcut spiral bit?

Re: Spiral upcut/downcut router bits

Hi,

Spiral downcut bits are best used on trenching formica or melamine faced boards, the downward slicing motion of the blades prevents chipoff on the face of the board. But because of the stress caused by chip buildup these type of bits are best used on table, overhead or CNC routers. While the Compression Cutter (combination upcut/downcut) are exclusive to industrial CNC routers. The reason is that it cuts double faced melamine board through in one pass with opposite slicing motion to prevent chipoff on both surface.

Cheers,

Re: Spiral upcut/downcut router bits

thanks for sharing...

Re: Spiral upcut/downcut router bits

Not sure about terminology, but I would say
chipoff = when material that shouldn't come off does
feathering = when material that should come off doesn't (but instead gets bent aside)

On wood, when cutting rabbets with a straight bit, I get occasional chipoff on the short vertical end edges, and feathering on the long horizontal top edges. It looks like cloth that frayed. It requires an additional step of filing it. Some kinds of wood seem to have more tendency to feather than others. I expect that a downcut bit will solve this feathering problem, though it is limited to shallow cuts or multiple shallow passes because of waste buildup.

While good for deep mortising, I am guessing that an upcut bit may have higher tendency to cause chipoff than a straight bit.

Seems that you can't have your cake and eat it too, with either direction. but I'm not complaining.

To avoid confusion with up vs. down (on router table, upcut bit will propel chips down), they should called them out and in.