Boka ER40 precision collets 0.01mm concentricity size 4-26mm
Boka ER40 precision collets 0.01mm concentricity size 4-26mm - ER40-4mm is backordered and will ship as soon as it is back in stock.
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Boka ER40 precision collets 0.01mm concentricity size 4-26mm
Boka ER40 precision collet series
Discover the Boka ER40 high-precision collet series . Made from hardened 65Mn spring steel, they offer 0.01mm concentricity (4x D) and are compatible with all ER40 collet chucks . Designed for milling, turning, and drilling machines, they are characterized by durability and increased wear resistance . This is achieved through thermal aging and cryogenic treatment . Optimum performance is ensured by full tool shank insertion.
Interested in a complete set? Check out our ER series set here.
Product advantages
- High concentricity: Boka ER40 collets offer concentricity of less than 0.01mm (4x D). This ensures high precision for precise applications.
- Quality material and hardening: Made of high-quality 65Mn spring steel, fully hardened. This ensures high strength and a long service life.
- Improved durability through process: Thermal aging eliminates stresses. Cryogenic treatment increases wear resistance and stability.
- Secure tool holder: For cylindrical tool shanks. Always insert the shank completely for optimal clamping performance.
- Standards Compatibility: Boka ER40 collets meet industry standards. Compatible with common ER40 collet chucks.
Technical data
| Article (parameter) | ER40-4 | ER40-5 | ER40-6 | ER40-7 | ER40-8 | ER40-9 | ER40-10 | ER40-11 | ER40-12 | ER40-13 | ER40-14 | ER40-15 | ER40-16 | ER40-17 | ER40-18 | ER40-19 | ER40-20 | ER40-21 | ER40-22 | ER40-23 | ER40-24 | ER40-25 | ER40-26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SKU | 56031101 | 56031102 | 56031103 | 56031104 | 56031105 | 56031106 | 56031107 | 56031108 | 56031109 | 56031110 | 56031111 | 56031112 | 56031113 | 56031114 | 56031115 | 56031116 | 56031117 | 56031118 | 56031119 | 56031120 | 56031121 | 56031122 | 56031123 |
| Model | ER40-4mm | ER40-5mm | ER40-6mm | ER40-7mm | ER40-8mm | ER40-9mm | ER40-10mm | ER40-11mm | ER40-12mm | ER40-13mm | ER40-14mm | ER40-15mm | ER40-16mm | ER40-17mm | ER40-18mm | ER40-19mm | ER40-20mm | ER40-21mm | ER40-22mm | ER40-23mm | ER40-24mm | ER40-25mm | ER40-26mm |
| Size (d) | 4mm | 5mm | 6mm | 7mm | 8mm | 9mm | 10mm | 11mm | 12mm | 13mm | 14mm | 15mm | 16mm | 17mm | 18mm | 19mm | 20mm | 21mm | 22mm | 23mm | 24mm | 25mm | 26mm |
| clamping area | 4mm-3mm | 5mm-4mm | 6mm-5mm | 7mm-6mm | 8mm-7mm | 9mm-8mm | 10mm-9mm | 11mm-10mm | 12mm-11mm | 13mm-12mm | 14mm-13mm | 15mm-14mm | 16mm-15mm | 17mm-16mm | 18mm-17mm | 19mm-18mm | 20mm-19mm | 21mm-20mm | 22mm-21mm | 23mm-22mm | 24mm-23mm | 25mm-24mm | 26mm-25mm |
| Diameter (D) | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm | 41mm |
| Total length (L) | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm | 46mm |
| Concentricity | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm | 0.01mm |
| form | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round |
| Material type | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel |
| Packaging dimensions (mm) | 39x39x45 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 | 47x47x52 |
| Gross weight (kg) | 0.28 | 0.27 | 0.27 | 0.27 | 0.27 | 0.28 | 0.28 | 0.28 | 0.27 | 0.27 | 0.27 | 0.26 | 0.26 | 0.25 | 0.24 | 0.24 | 0.22 | 0.22 | 0.21 | 0.21 | 0.19 | 0.18 | 0.17 |
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