A BT Tool Holder is a symmetric-flange tool holding system widely used in CNC VMCs and HMCs. Known for its rigidity and stability, the BT taper ensures consistent tool positioning and high-speed performance. Manufactured from premium alloy steel and precision ground, Asmita Industries’ BT tool holders meet international machining standards.
Types of BT Tool Holders We Offer
- BT ER Collet Tool Holder (BT30 / BT40 / BT50)
- BT End Mill Holder
- BT Shell Mill Arbor
- BT Tapping Tool Holder
- BT Drill Chuck Arbor
- Special BT Tool Holders (As per drawing)
Key Features
- High Accuracy Runout up to ≤ 0.010 mm
- Hardened & Precision Ground Taper
- Excellent Rigidity for heavy-duty cutting
- Dynamic Balancing available for high RPM
- Corrosion-Resistant Surface Finish
- Custom Gauge Lengths Available
Applications
- CNC milling operations
- High-speed machining (HSM)
- Drilling & tapping
- Automotive & aerospace components
- Die & mold manufacturing
Technical Specifications (Typical)
|
Parameter
|
Specification
|
|
Taper Standard
|
BT (MAS 403)
|
|
Sizes
|
BT30 / BT40 / BT50
|
|
Collet Type
|
ER16 / ER20 / ER25 / ER32 / ER40
|
|
Material
|
Alloy Steel
|
|
Runout Accuracy
|
≤ 0.003–0.005 mm
|
|
Balancing
|
G2.5 @ 25,000 RPM (optional)
|
|
Surface Treatment
|
Hardened & Ground
|
Advantages of BT Tool Holders
- Improves machining accuracy & surface finish
- Reduces vibration at high spindle speeds
- Ensures consistent tool repeatability
- Suitable for both high-speed & heavy cutting
- Long service life under continuous production
Why Choose Asmita Industries?
✔ 34+ years of precision manufacturing experience
✔ In-house grinding, heat treatment & inspection
✔ Standard & custom BT tool holders
✔ Trusted Indian collet & tool holder manufacturer
✔ Pan-India supply & export support