🔥 Shape your vision with the ultimate rotary burr!
The Kutzall Original Sphere Rotary Burr features a 1" diameter ball end with a coarse tungsten carbide abrasive coating, engineered for rapid, smooth material removal across wood and various non-metallic materials. Its 1/4" shaft fits standard die grinders, delivering precision and durability that outperforms conventional abrasives by 100 times. Handcrafted in the USA for over 60 years, it’s the go-to tool for professionals seeking reliable, versatile carving performance.





| Material | Original - Coarse |
| Cutting Length | 1 Inches |
| Finish Type | Unfinished |
| Cutting Diameter | 1 Inches |
| Size | Head Diameter: 1", Head Length: 1" |
| End Cut Type | Ball End |
| Cut Type | Ball End |
| Brand | Kutzall |
| Shape | Round |
| Product Dimensions | 1"L x 1"W |
| Item Weight | 1 Ounces |
| Tolerance Held | Precision |
| Number of Cutting Edges | 6 |
| Manufacturer | Kutzall |
| UPC | 818050020455 |
| Part Number | S-1 |
| Item Weight | 1 ounces |
| Item model number | S-1-CAN |
| Is Discontinued By Manufacturer | No |
| Finish | Unfinished |
| Item Package Quantity | 1 |
| Measurement System | Imperial, Metric |
| Batteries Included? | No |
| Batteries Required? | No |
| Assembled Diameter | 1 Inches |
E**D
It works great
Good price
C**M
Better than the Saburr Tooth
I am genuinely surprised at the quality of this tool. I used it to grind out the hollow part of a spoon and it worked wonderfully. I did 2 spoons from the same maple board. One board I used the Saburr Tooth sphere coarse and the other I used this Kutzall coarse. I thought based on looks that the Saburr Tooth would do the better job, but actually the Kutzall performed better, both in the speed of material removal and ease of handling. I thought the Kutzall would clog with wood and require cleaning every few minutes, but the opposite was true, it never clogged. The Kutzall actually ground out the wood and it came out in a fine dust, while the Saburr Tooth cut out much larger pieces, but at a slower removal rate. The wood heats up with the Kutzall, but it doesn't burn, at least if you keep the tool moving. I also got the fin Kutzall for clean up and it works well too, just not as profoundly as the coarse Kutzall, which is to be expected. I'm glad I got these tools and wish now that I hadn't got the Saburr Tooth tools. I have a dedusting system and work with the project piece with the Foredom rotary tool right at a point of dedusting suction. I generate a lot of the dust and most of it is captured by the dedusting system, but not all, so be sure to wear a dust mask as well.
J**N
Aggressive!
I do a lot of power carving and Kutzall bits are unquestionably the best. Definitely get what you pay for with some tools, and this is a prime example of quality isn’t expensive, it’s priceless.
R**D
Not a smooth finish.
I thought this would leave a smooth sanded finish but it does not. It's still a fairly rough surface. It's made for removing material - not getting a smooth finish. It's good for the job it can do (removing material) but don't expect a smooth finish.
W**Y
Quickly tear into your piece
My wife wants to make a candle out of a birch log from a tree we cut down last year. I decided to get this ball to carve out the cavity instead of using one of my discs. I can honestly say, this made easy work of removing material. Attached to my Hercules grinder I carved out the cavity of the birch log in about 15 - 20 mins. I had no issues with the ball skipping or gauging the material. I have always been a fan of Kutzall products. They are the burrs and discs I reach for, whenever I am grinding.
L**I
Amazing! Provided exactly what I needed! Excellent Durability!
This is an amazing bit! I needed to drill little "cups" into a thick acrylic sheet and this was the only bit I could find that would help me achieve this task. It did the job perfectly and has held up in quality. It is just as "sharp" as it was with the first round of drilling. I also used it on wood with the same excellent results. It is extremely difficult to find this type of bit and I am extremely happy with the results and durability that it provided for a very reasonable cost!
T**L
Fantastic!
This thing is fantastic! You really get what you pay for with this guy- I've picked up a couple others that aren't carbide and while cheaper, they are MUCH more difficult to use and catch a lot. This one cuts through wood like butter!
S**S
Exactly what I needed
Quality made, very sharp. I used a torch to clean the debris from the cutting head. Good purchase.
Trustpilot
1 month ago
3 weeks ago