BT40-LBK4-85 Boring Head Shank 85mm LBK4 22mm MAS403

The BT40-LBK4-85 boring head shank is designed for medium diameter boring applications requiring strength and stability. Built to MAS403 standard, it delivers reliable machining performance.

This shank is compatible with CBA40 boring heads, supporting a machining range of 40–55–79mm depending on configuration.

Key Features & Benefits

• 85mm projection for controlled machining
• LBK4 (22mm) interface for medium boring heads
• BT40 taper for CNC use
• Rigid construction for improved accuracy
• Compatible with CBA40 system

Technical Specifications

• Model: BT40-LBK4-85
• Taper: BT40
• Interface: LBK4 (22mm)
• Compatible Head: CBA40
• Boring Range: 40–55–79mm
• Height (Z): 100mm
• Length (L): 135mm
• L1: 85mm
• D1: 39mm
• Weight: 1.8kg