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Busch Burr 411t Twincut Concave Cup 1.0mm

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Designed with TWINCUT blade geometry Quick and precise metal removal Perfect for rounding off, shortening and smoothing claws For use with a pendant drill, hobby drill or micromotor Made from tungsten vanadium steel Established in 1905, Busch are the leading manufacturers of precision cut rotary accessories and pride themselves on maintaining high quality trend led developments. This 1.0mm pioneering TWINCUT Concave Burr from Busch is the ultimate tool for chaton work, it has been produced from a single piece of tungsten vanadium steel and is characterised by a stable design which provides a precise power cut and optimum concentricity, ideal for finishing claws. This three-in-one precision tool allows you to safely round off, shorten and smooth claws in one easy step. Designed with TWINCUT blade geometry, the concave burr removes material quickly and precisely and has two chip channels for the rapid discharge of removed material. The cup walls of these burrs are also much thinner, making it easy to work on tightly spaced claws. The Busch TWINCUT Concave Burr is made from tungsten vanadium steel, ensuring both precision quality and a long lifespan, with a rounded cup profile for improved view of work. Recommended speed 2500 - 7000rpm. They are designed to be used in conjunction with a pendant drill, hobby drill, micromotor or even a pin vice such as 999 AKK or 999 332 to cut or grind away, shape or give pattern to a surface. Suitable to be used on metal, wax and plastics. Each burr`s construction consists of a number of teeth/blades (in a spherical shape) mounted onto a 2.34mm shank. The shank fits into the collet/chuck of the drill, and when turned these teeth cut into and remove the surface being worked upon. Quantity of material removed depends on pressure applied, use of `Burr Life lubricant` (998 021) helps prolong the burrs cutting ability. For a narrower conical finish see 989 021Bhttps://www.cooksongold.com/Jewellery-Tools/Busch-Burr-411t-Twincut-Concave-Cup-1.0mm-prcode-989-411M?p=gs

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Displaying all 5 reviews
NI
Nic
Weymouth
13 days ago
Date of purchase: 09/06/2025
Busch Burr 411t Twincut Concave Cup 1.0mm
Trusted Customer
3 years ago
Date of purchase: 21/01/2022
Busch Burr 411t Twincut Concave Cup 1.0mm
I haven’t used it yet, but I Know it’s quicker than filling and will give A lovely smooth finish to prongs and earring findings.
AL
Alan
3 years ago
Date of purchase: 07/01/2022
Busch Burr 411t Twincut Concave Cup 1.0mm
as previous item its what it should
Trusted Customer
6 years ago
Date of purchase: 31/08/2018
Busch Burr 411t Twincut Concave Cup 1.0mm
1mm is the outside diameter of the burr, so no good for rounding 1mm wire, which is what I bought it for. Have now bought the 2.9mm version.
Merchant Logo
Callum Smith
Cooksongold.com
6 years ago
Hi

Thank you for your feedback, I apologise that the product you ordered was not what you expected. I have informed the relevant department about your comments so that they can investigate the issue

Kind regards Callum
Trusted Customer
6 years ago
I would like to add that there is nothing wrong with this, it is excellent quality and perfect for rounding off thinner wires, which I will use it for.
Trusted Customer
8 years ago
Date of purchase: 26/10/2016
Busch Burr 411t Twincut Concave Cup 1.0mm
About Cooksongold.com
For over 20 years Cooksongold have led the way in providing high quality professional jewellery making products at affordable prices. From gold, silver, platinum and palladium bullion to the industry's leading jewellery tools and more.
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59-83 Vittoria Street, Birmingham, West Midlands, B1 3NZ, United Kingdom
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About Cooksongold.com
For over 20 years Cooksongold have led the way in providing high quality professional jewellery making products at affordable prices. From gold, silver, platinum and palladium bullion to the industry's leading jewellery tools and more.