High-Precision BT40 ER Collet Chuck Tool Holder (0.005mm Runout, 42CrMo) – OEM
The Ultimate Rigid Connection Between Your CNC Spindle and Cutting Tools
- Factory-direct pricing
- OEM / ODM & private label
- Flexible MOQ, trial orders OK
- Quote within 24 hours
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Specifications
| Product Name | OEM BT40 ER Collet Chuck Tool Holder (42CrMo, 0.005mm TIR, 7/24 Taper) |
|---|---|
| Tool Holder Standard | MAS 403 BT40 (7/24 Taper Angle) |
| Collet Interface | ER Series (e.g., ER16, ER20, ER32) |
| Material | Premium 42CrMo Alloy Steel (Deep Cryogenic Treatment) |
| Hardness | HRC 48-52 (High surface hardness with tough core) |
| Runout / TIR Precision | High Precision ≤ 0.005mm |
| Gauge Lengths (L) | Standard 70mm, 100mm, 150mm (Custom lengths available) |
| Application | High-Precision CNC Milling, Drilling, and Tapping |
| Brand Name | Xiaoman Tools |
| Manufacturer | Shanghai Daoge Xiaoman Tools Co., Ltd. |
| Customized Support | 100% OEM/ODM (Dynamic Balancing G2.5, Laser Etching, Custom Boxes) |
Why buyers pick this one
- 0.005mm High-Precision Runout
- Ground to extreme tolerances, ensuring the cutting tool spins perfectly true. This drastically improves surface finishes on milled parts and prevents premature edge chipping on solid carbide tools.
- Premium 42CrMo Construction
- Far superior to standard carbon steels, 42CrMo alloy steel provides incredible tensile strength and fatigue resistance, essential for heavy-duty CNC milling and high-speed machining.
- Perfect 7/24 Taper Contact
- The spindle taper is precision-ground to achieve over 85% contact area with the machine spindle, ensuring rigid power transmission and protecting the machine's bearings.
- Versatile ER Collet Interface
- The universally accepted ER clamping system (ER16, ER20, etc.) allows you to securely grip a massive range of tool diameters using a single holder.
- Wholesale OEM Capabilities
- We bypass middleman markups. Partner with us for custom dynamic balancing (e.g., G2.5 @ 25,000 RPM), personalized laser branding on the flange, and rugged B2B packaging solutions.
Product detail
