Arms and Attachments
Tooling Arm 1.5″ × 1.5″ × 17″ Solid Aluminum
$89
Available to order
A 17-inch tooling arm machined from solid 1.5-inch aluminum, with 3/8-16 tapped holes on two sides for work tables, rests, wheels and surface grinder attachments.
Build your setup
Order the tooling arm
Bundle savings
Quantity
- Your total
- $89
Shipping
Free local pickup
2-year warranty
Questions before you buy?
What sets it apart
1.5 × 1.5 × 17-inch solid aluminum, machined true
3/8-16 holes on two sides for mounting attachments
Fits every Torus grinder and most 2×72s built around a 1.5-inch arm
- 5.0 combined rating on Google and Etsy (opens in a new tab)
- 49 buyer reviews (opens in a new tab)
- 350+ customers since 2020
- 7–10 business days from time of order
Google reviews
What owners say
Straight from Google, word for word. The ones about this kind of part come first.
- 5 out of 5 stars
he said he’s working on a surface grinder attachment that I’m excited for.…
Read the whole review by aaron emmerichShow the short version of aaron emmerich’s review
I am unbelievably impressed with my Torus grinder. The machining is immaculate and tolerances are crazy for a grinder. It tracks perfectly. I bought this sight unseen and was a little bit concerned that aluminum wouldn’t be as rigid and that the weight of the aluminum would make it not a sturdy. I have used TW 90s, brodbeck, ameribrade, Kmg as well as a couple others and the Torus is as good as the best of these and better than most at a fraction of the cost. The ratchet tensioning is awesome.
Rich the owner has given me the best customer service of any company I’ve ever dealt with. The first time I reached out to him he responded back in 10 minutes at 10pm at night. Will always answer any questions I have and even changed the plug out pin the 220v to fit my dryer socket. On a scale of 10 I give torus a 11+. he said he’s working on a surface grinder attachment that I’m excited for.
I want to reiterate. Anyone is concerned about aluminum, do not be. This thing is more rigid and vibrates less than any grinder i’ve used. The only grinder that seem to be as balanced is the Northridge (RIP). there are some grinders that are great for the price. This grinder is UNBELIEVABLE for the price and competitive with the tw-90/brodbeck/wilmont etc.
I have no affiliation with Rich and was nervous buying this grinder as it’s not talked about much but it should be. I was ready to pull the trigger on an Ameribrade or brodbeck. I am glad I saved some money and know now I have a better machine.
aaron emmerich - 5 out of 5 stars
Runs super smooth and quiet with basically no vibration. Even though it's aluminum, there's zero flex or rattling - feels rock solid even when you're really putting it to work.…
Read the whole review by Eric TorrieShow the short version of Eric Torrie’s review
Got this belt grinder for our farm shop and it's been awesome. The machining quality really impressed me - everything fits tight and feels solid, you can tell they put real care into making it.
Setup took maybe 20 minutes tops and it was ready to roll. Runs super smooth and quiet with basically no vibration. Even though it's aluminum, there's zero flex or rattling - feels rock solid even when you're really putting it to work.
Love the tracking system and the ratchet belt tensioning - makes changing belts quick and painless. All the controls just make sense.
But honestly, what made this purchase special was dealing with Rich. He was incredible - answered all my questions before I bought it, made sure I got the right setup, and followed up several times after it arrived to check how everything was running. You just don't get that kind of service anymore.
First belt grinder we've owned and I'm really happy with it. Thing's built to last and performs great. Would definitely recommend it if you're looking for a solid grinder for your shop.
Keep up the fantastic work Rich!
Eric Torrie - 5 out of 5 stars
I decided to use Taurus CNC because almost everything is made from high quality aluminum.…
Read the whole review by victor schmidtShow the short version of victor schmidt’s review
Super Happy for deciding to purchase my first professional quality 2 x 72 belt grinder from Torus CNC. The owner Rich Answered all my questions and fast and he stayed in contact with me assuring everything went smoothly. I decided to use Taurus CNC because almost everything is made from high quality aluminum. That means no rust! I’m using a misting system that gets water everywhere. The set up took 20 minutes literally. Everything came preassembled and very well packaged. If you’re thinking about buying a new professional belt grinder for knife making or custom fab work this is the spot you won’t be disappointed.
victor schmidt
Why this one
One arm per attachment. Swap in seconds.
1.5 × 1.5 × 17-inch solid aluminum, machined true
3/8-16 holes on two sides for mounting attachments
Fits every Torus grinder and most 2×72s built around a 1.5-inch arm
How an arm swap works
Each attachment keeps its own solid 1.5-inch arm, so changing tools is one arm out of the receiver and the next one in, with nothing to unbolt.
Who it's for
Built for the work you actually do
Makers who want each attachment on its own arm so changeovers take seconds, DIY builders adding a work rest or surface grinder attachment, and anyone who wants a plain arm with no holes for a custom fixture.
What’s in the box
- One 17-inch tooling arm, solid 1.5-inch aluminum
- 3/8-16 holes on two sides (or no holes, on request by email)
Where the arm goes
On the grinder an arm holds its attachment inside the belt loop; here it is the deep flat platen on a 1.5-inch arm with the belt running over its two wheels.
Specs
Product specifications and dimensions
- Base price
- $89
- Availability
- Available to order
- Lead time
- Most orders ship in 7–10 business days from time of order
- Ships from
- 1741 Industrial Drive Unit #8, Sterling, Illinois
- Shop
- Torus CNC — Sterling, Illinois, USA
Options
Choose and compare product options
Compare motor packages, attachments and finish choices before ordering.
Standard, with 3/8-16 holes ($89)
Tapped on two sides so a work table, articulating rest, wheel bracket or surface grinder attachment bolts straight on.No holes, on request
If you are building a custom fixture and want a blank arm, email me when you order and I will ship it undrilled at the same price.
Before you order
Shipping, warranty and returns
Shipping and lead time
In-stock attachments usually ship from Sterling, Illinois in seven to ten business days from time of order, with a tracking number the day they go out. A more detailed delivery estimate will be given when you order. Returns are case by case: contact me first, within two weeks of arrival. Approved returns carry a 25% restocking fee and the buyer covers insured return shipping. Ground shipping in the lower 48: $95 a grinder, $145 with a motor package, $75 a motor on its own, $35 the first accessory and $15 each after; a tooling arm on its own $20 ($10 each extra); small parts (knobs, wheels) $12 flat on their own and free with anything bigger. A grinder with a motor and accessories is capped at $145.Warranty
I warranty the non-wear parts against defects in materials and workmanship under normal use. Motors and VFDs carry their manufacturer's warranty; contact me for guidance on the manufacturer's claim process.Returns
Returns are reviewed case by case and must be pre-approved within two weeks of arrival. The buyer covers insured return shipping, a 25% restocking fee applies, and original shipping is not refunded.
Straight answers
Questions I get about the tooling arm
Why would I want a spare arm?
So each attachment lives on its own arm. Instead of unbolting a work table to mount a contact wheel, you slide one arm out and the other in, and everything comes back at the same height.
Will it fit my grinder?
Fits the Nova, Nebula, Classic and Steel closeout, and most other 2×72 grinders built around an industry-standard 1.5-inch square tooling arm. If you are not sure about yours, email me the arm size and I will tell you.
Can I get it without holes?
Yes. Email me at rich.linville@toruscnc.com with your order number and I will ship a blank arm at the same price.
How fast does it ship?
In-stock attachments usually ship from my shop in Sterling, Illinois in seven to ten business days from time of order. A more detailed delivery estimate will be given when you order. You get a tracking number the day it goes out.
Can I return it if it does not work for me?
Email me first, within two weeks of arrival. Returns are approved case by case, carry a 25% restocking fee, and you cover insured return shipping. If there is a workmanship problem, I will work with you to remedy it.
Goes with it
The grinders this was built for
Standard 1.5-inch tooling arms fit all four Torus grinders.
Corvus Edition · Only 14 remain.
ForgeBrain
Read this before you build
Free knifemaking guides from the same bench, organized by the work at the grinder.
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Abrasives
The Small Wheel Attachment: Grinding the Impossible Curves
Every maker hits the same wall: the blade needs a curve the platen cannot reach — a finger choil, a fuller, the inside sweep of a recurve, the throat of a hawk’s beard. The small wheel attachment is the answer to all of them: interchangeable wheels down to fingertip sizes, running the same belt, reaching…
One-man shop
Tell me what you're building
I answer my own email and build Torus grinders in this shop. If you are not sure which setup fits your work, ask me before you order.