Product Overview
FODBITS gear-driven BT drill chucks combine the drill chuck and BT toolholder in a compact, integrated assembly. This one-piece construction eliminates the separate chuck-to-arbor connection and helps reduce cumulative connection error.
The gear-driven self-tightening mechanism provides strong tool clamping and self-locking action during machining. The chuck can be tightened and released by hand, allowing faster tool changes without a chuck key.
These integrated chucks are designed for compatible CNC machining centres and CNC milling machines performing drilling and tapping operations.
Key Features
- Integrated BT shank and drill chuck construction
- BT30, BT40 and BT50 catalogue options
- Manufactured to MAS403-BT / JIS B 6339 dimensional standards
- 1–13 mm and 1–16 mm clamping ranges
- Compact short-design configuration
- Gear-driven self-tightening mechanism
- Strong clamping force with self-locking action
- Hand tightening and hand release
- Fast tool changes without a chuck key
- Suitable for drilling and tapping applications
- Runout ≤0.05 mm
- Designed for CNC machining centres and CNC milling machines
Integrated Design
The drill chuck and BT toolholder are manufactured as an integrated assembly. Compared with a conventional drill chuck installed on a separate arbor, this construction reduces the number of mechanical connections and helps minimise accumulated alignment error.
The integrated design also provides a more compact and secure assembly for demanding CNC machining applications.
Standard Catalogue Models
| Model | Connection | Clamping Range | L1 | Overall Length L | L2 | D | d1 | d2 | Runout |
|---|---|---|---|---|---|---|---|---|---|
| BT30-APU13-115 | BT30 | 1–13 mm | 115 mm | 179 mm | 75 mm | 59.5 mm | 53 mm | 13 mm | ≤0.05 mm |
| BT40-APU13-110 | BT40 | 1–13 mm | 110 mm | 190.4 mm | 75 mm | 63 mm | 53 mm | 13 mm | ≤0.05 mm |
| BT40-APU16-130 | BT40 | 1–16 mm | 130 mm | 213 mm | 80 mm | 66.5 mm | 60 mm | 16 mm | ≤0.05 mm |
| BT50-APU13-120 | BT50 | 1–13 mm | 120 mm | 237 mm | 75 mm | 100 mm | 53 mm | 13 mm | ≤0.05 mm |
| BT50-APU16-125 | BT50 | 1–16 mm | 125 mm | 242 mm | 80 mm | 100 mm | 60 mm | 16 mm | ≤0.05 mm |
Catalogue specifications do not guarantee immediate availability. Only selectable products shown above the Add to Cart button are currently available to order.
Selecting the Correct Model
Before ordering, confirm:
- Machine spindle connection: BT30, BT40 or BT50
- Required clamping range: 1–13 mm or 1–16 mm
- Available tool length and machine clearance
- Required pull-stud or retention-knob specification
- Maximum permitted tool weight
- Automatic tool changer compatibility
- Suitability of the machine for the intended drilling or tapping operation
BT30, BT40 and BT50 toolholders are not interchangeable. The pull stud or retention knob must also match the machine tool manufacturer’s spindle and automatic tool changer requirements.
Application Guidance
These integrated chucks are suitable for compatible:
- CNC machining centres
- CNC milling machines
- Drilling operations
- Tapping operations
- Production machining
- General CNC workshop applications
Always operate within the machine manufacturer’s spindle speed, torque, tool-weight and automatic tool changer limits.
Availability
Current stock and back-order availability is shown against each selectable model below.