SpeTool Upcut Spiral Router Bit 1/8 Inch Cutting Diameter 1/4 Inch Shank, Extra Long 3 Inch Extreme Tool Life Coated Solid Carbide CNC Wood Plunge Router Bits

I didn’t need to make a deep groove, so it lasted a long time. Hard to find 1/16” and I was delighted to find this. My wood could chip easily, so I needed to sand the grooves, but I think that was more a function of my material than the bit.

Absolutely one of my best router bits this nice and smooth finish i already ordered another 3 different sizes and the price is acceptable for what you are getting no doubt 👍🏼

I originally bought this to make a pen / pencil holder for my wife, who like to sketch ... it has 204 holes in the top, with matching pockets in the base, and it was made out of white oak ... the bit took care of that task very well (I used a spiral milling method). Then today I used it in purple heart, milling a 3.9" diameter x 0.35" deep pocket that will hold a phone charging pad, and again with very good results. Note: I tend to use conservative feed and speed values ... in this latter case I used about 15000 rpm, 40 ipm, 0.05" depth per pass ... I could definitely have gone faster, but it's not worth it to me to save a few minutes and risk having issues.

I'm new to CNC work and my designs, nothing more frustrating than 3 hrs into a design to have the bit break off ruining the piece and I have to start over, when time is money that hurts for a small business. These bits last longer than any I've found so far, so I can count on getting several jobs done with one bit. I hope at some point that they can be ordered in sets rather than ordered separately. I gave the bit 4 stars just for that otherwise I love the bit and recommend it to others.

I wish I would have had a better understanding of the difference between down cut bits and up cut bits. Up til now I have used down cut bits for everything. The bottom of all my previous cuts always looked unfinished. No more thanks to up cut bits! Nice and sharp. I’ve always had good results with bits from this company!

For background, I run a full sheet CNC, cutting primarily 3/4" maple plywood, MDF and HDF. I had been using high priced A***a end mills for my work and they are great, but very expensive and I found that MDF was hard on the coating which often led to shortened lifespans.When I started looking for more cost effective alternatives I tested a series of bits from SpeTool and I was immediately surprised at the cut quality and durability. Even thin 1/16" bits went the distance if I was mindful of going low and slow on my DOC and speeds.I've moved completely to SpeTools for my straight cut bits, and this was my first purchase of their coated bits.It's a big improvement in durability and friction reduction. These are my new go to bits!What I liked:1. SpeTool end mills are a great value, particularly the 5 packs.2. Coating markedly reduces friction and chatter.3. Longer shank adds cutting depth when needed and puts more of the shank in contact with my water cooled spindle which further cools the bit.4. Available in all sizes with a 1/4" shank. I don't have to change collets.5. All sizes are available in multiple cut types. I typically use uncut and compression cut bits in 1/4" and 1/8".What I wish:Please offer these bits in 5 packs!

Just started using these End Mills today on my CNC.Was super tired of paying $75 to $150 for the more expensive Endmills. A friend recommended I try these and I did!Great cut, very sharp and and fairly quiet. So far they are just as good as the more expensive ones…. The real test is how long they last running nonstop.Biggest benefit is they don’t break the bank when one gets broken!!

Wanted to try this bit for cutting butterfly inlays. Wanted something easy on the wallet but did a good job. Gotta admit after the first cut out, I’m pretty impressed. Bit handled it like a champ! If I run into any problems down the ride I’ll update this review.

sharp, high quality

They really do make a good job,Very clean cut...

I have many Spetool bits. They have the database for Vectric which is excellent. Can't find any issues with any Spetool bit I have used.A few have broken - but that is on me for pushing it too hard ;)

Worked perfectly for me when cutting stencilled holes out of some high density 18mm MDF. Nice quality, would recommend for this price

Tried the bit a few times. It's fine, but it's nowhere close to Whiteside or others. The finish isn't all that great. Not even as nice as some bits from China for half the price.It'll do in a pinch, but better to save up for better bits.