Anyone used up cut spiral router bit

[tony.w]

I was intending on using 1/2 router for mortising but to be fair my router bits have seen better days so looking about came across spiral bits but having never used one was looking for any feedback, are they also worth £60 - £70 plus for a Tungsten carbide 60mm depth or maybe just update for decent flute bits

 

[Pete Maddex]

I have used slot drills for milling metal in my router and they work really well.

You can get them in solid carbide or HSS.

Pete

 

[Malc2098]

I use both up and down cutters on my cnc as well as combination cutter, they're both up and down. It depends on which side of the workpiece is the good or face side, and if both are, then the combination cutter is used.

For my table router, I found that it was cheaper to get a 12mm collet for my router. I found that engineering suppliers of carbide end mill cutters were cheaper than woodwork suppliers of 1/2" cutters.

 

[Pete Maddex]

I have a 6mm and 10mm sleeves so I can use smaller slot drills.

Pete

 

[tony.w]

Thanks guys i never gave engineer stuff a thought but it makes sense

 

[tony.w]

I use both up and down cutters on my cnc as well as combination cutter, they're both up and down. It depends on which side of the workpiece is the good or face side, and if both are, then the combination cutter is used.

For my table router, I found that it was cheaper to get a 12mm collet for my router. I found that engineering suppliers of carbide end mill cutters were cheaper than woodwork suppliers of 1/2" cutters.

I can find 12mm so i guess no issues with 12mm in 1/2 as the norm quoted is 12.7mm

 

[Malc2098]

I can find 12mm so i guess no issues with 12mm in 1/2 as the norm quoted is 12.7mm

I don't think so. For my Triton, I've got a 1/4", and 1/2" and a 12mm.

 

[Steve Maskery]

The only problem with using end mills for mortising is the grind angles. I'm no expert on this, but I did it all once on the advice of, I think, Sam Mallof, so no jonny-cum-lately, but the results were not what I had hoped for and I was told that it was because of the grind. So obviously not all end mills are created equal.
I shall be very interested to hear of your experience and results, because, if they are good, then yes, engineering supplies are inexpensive comapared with specialist router cutters.
S
PS If you put a 12mm shank i a 1/2" cutter, you are asking for trouble

 

[tony.w]

I agree with your comment Steve 12mm shank in 12.7mm, I think from reading that engineered sleeves are only really a temporary solution everyone will have a opinion on this off course and mine is 12.7 is what it's made then 12.7 it will be. I've got a Whitehill block with clamped blades and that scares the be Jesus out of me, think I'm just going to buy mid priced12.7mm shanked spiral bit for wood and give it a go.

 

[Pete Maddex]

You won’t get a 12mm bit tight in a 12.7mm collet.

Pete

 

[Weekend_Woodworker]

I invested in 12.7mm uncut spiral bit from Wealdens and whilst it wasn’t cheap I don’t regret it as it is a really nice bit to use and great for mortising type applications. Buy exepensive, buy once!

Online Catalogue

www.wealdentool.com

 

[meccarroll]

Up-cut bits are used to clear the chips out of the cutting area and I did heard of a utuber using an upcut bit in his router morticing jig. He mentioned using an upcut spiral bit at around 1:36 :

https://www.bing.com/videos/rivervi...5ED1D657EFC96930E5015ED1D657EFC9693&FORM=VIRE

You may not get the same result using your hand held router as the bits are made for machines like CNC and milling machines.

Be aware that there are one, two and three flute upcut bits etc and they also come in different grinding patterns on the flute edges.

This the exact same type of cutter we used to use in a combination machine that had a slot mortice attachment:







The above cutter gave a very clean and fast cut.

 

[meccarroll]

I don't know if these might work (Carbide):

https://www.aliexpress.com/item/1005003561983906.html?spm=a2g0o.productlist.main.7.c4fc7f0fYBougY&algo_pvid=92341140-cf46-4783-b26b-4cd51f3b683f&algo_exp_id=92341140-cf46-4783-b26b-4cd51f3b683f-3&pdp_npi=4@dis!GBP!32.71!21.59!!!39.44!26.03!@211b819117383172116198346e5d00!12000026402208063!sea!UK!2394725950!X&curPageLogUid=1ks5h4edfH30&utparam-url=scene:search|query_from:

Or these (HSS):

https://www.aliexpress.com/item/1005004434124149.html?spm=a2g0o.productlist.main.71.c4fc7f0fYBougY&algo_pvid=92341140-cf46-4783-b26b-4cd51f3b683f&algo_exp_id=92341140-cf46-4783-b26b-4cd51f3b683f-35&pdp_npi=4@dis!GBP!3.24!1.59!!!28.47!13.97!@211b819117383172116198346e5d00!12000029170057870!sea!UK!2394725950!X&curPageLogUid=9fZA3nJbNxqx&utparam-url=scene:search|query_from:

 

[meccarroll]