Acrow BT40-AK4-145 – AK Boring Shank Ø39mm, 145mm

Acrow BT40-AK4-145 – AK Modular Boring Shank (Ø39 mm, 145 mm Length)

The Acrow BT40-AK4-145 is a medium-length AK Modular Boring Shank designed for use with AK4 boring heads. With a 145 mm gauge length and 39 mm body diameter, this arbor offers an excellent balance of rigidity and reach, ensuring precise boring with stable cutting performance. Its precision-ground surface and hardened alloy construction deliver high accuracy and long service life.

Specifications:

• Brand: Acrow
• Type: AK Modular Boring Shank
• Model: BT40-AK4-145
• Compatible Boring Head: AK4
• Figure No.: 2
• Body Diameter (ØD): 39 mm
• Flange Diameter (ØD1): 50 mm
• Gauge Length (L): 145 mm
• Extension (L1): 56 mm
• Material: Hardened Alloy Steel
• Surface Finish: Precision Ground
• Run-out Accuracy: ≤ 0.005 mm
• Application: Ideal for moderate-depth boring operations using Acrow AK4 heads on BT40 spindle machines.