Zund R133-A Carbide Milling & Router Bit with Stop Ring 5211744
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Zund R133-A Carbide Milling & Router Bit with Stop Ring 5211744

Key Specifications
Item Number: 5211744 (standard Zünd R133 version without stop ring is 3910767)
Routing Diameter: 3 mm
Shank Diameter: 6 mm
Max Routing Depth: 11 mm
Total Length / Spec: 6 / 50 mm
Cutting Edges: 1 (Single flute, mirror-polished)
Cut Type: Down-cut (negative spiral pushes chips downward for a clean top-surface finish)
Max Rotation Speed: 50,000 RPM
Stop Ring: Integrated mechanical depth limiter for ARC tool-changing compatibility
Key Features & Benefits
Down-Cut (Left-Hand Twist) Design : Pushes material downwards during operation. This completely eliminates top-edge fraying and provides a perfectly clean finish on thin or laminated sheets.
Mirror-Polished Single Flute : Greatly limits heat generation and minimizes friction marks along the cut face. This makes it superior to the R123-A when machining delicate, high-gloss materials.
Integrated Stop Ring : Serves as a mechanical depth limiter. It is strictly optimized for Zund Automatic Router Changer (ARC) systems to guarantee seamless automated tool swaps and exact depth control.
Recommended Materials
This bit is highly versatile but performs best on:
Plastics & Acrylics (High-gloss acrylic, Expanded PVC, PA 6.6, PE, PET, PETG, PP)
Composites & Woods (Aluminum Composite Materials/Dibond, MDF, Hard paper)
Foams (Rigid foam board - PUR / PMI)


Key Specifications
Item Number: 5211744 (standard Zünd R133 version without stop ring is 3910767)
Routing Diameter: 3 mm
Shank Diameter: 6 mm
Max Routing Depth: 11 mm
Total Length / Spec: 6 / 50 mm
Cutting Edges: 1 (Single flute, mirror-polished)
Cut Type: Down-cut (negative spiral pushes chips downward for a clean top-surface finish)
Max Rotation Speed: 50,000 RPM
Stop Ring: Integrated mechanical depth limiter for ARC tool-changing compatibility
Key Features & Benefits
Down-Cut (Left-Hand Twist) Design : Pushes material downwards during operation. This completely eliminates top-edge fraying and provides a perfectly clean finish on thin or laminated sheets.
Mirror-Polished Single Flute : Greatly limits heat generation and minimizes friction marks along the cut face. This makes it superior to the R123-A when machining delicate, high-gloss materials.
Integrated Stop Ring : Serves as a mechanical depth limiter. It is strictly optimized for Zund Automatic Router Changer (ARC) systems to guarantee seamless automated tool swaps and exact depth control.
Recommended Materials
This bit is highly versatile but performs best on:
Plastics & Acrylics (High-gloss acrylic, Expanded PVC, PA 6.6, PE, PET, PETG, PP)
Composites & Woods (Aluminum Composite Materials/Dibond, MDF, Hard paper)
Foams (Rigid foam board - PUR / PMI)

If you have more questions to know ,please contact us .
Our team at Maisi Blades is dedicated to providing excellent customer service and we are always ready to assist you with any information you may need.
Whether it’s regarding our blade products, pricing, delivery options, or any other related queries, we are here to help.
Thank you for considering Maisi Blades as your trusted partner in the industry. We look forward to hearing from you soon!
Shenzhen Maisi Blades Co., Ltd.
Email: info@maisi-blades.com 798090832@qq.com
qq: 798090832
WeChat: 15983853385
Our team at Maisi Blades is dedicated to providing excellent customer service and we are always ready to assist you with any information you may need.
Whether it’s regarding our blade products, pricing, delivery options, or any other related queries, we are here to help.
Thank you for considering Maisi Blades as your trusted partner in the industry. We look forward to hearing from you soon!
Shenzhen Maisi Blades Co., Ltd.
Email: info@maisi-blades.com 798090832@qq.com
qq: 798090832
WeChat: 15983853385
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