Acrow AK1-020EXT Extension – 20 mm 4pc Brass Compression Male Female Connector 1/4x1/4 Applications: Fine-pitch internal UN thread

Applications: Fine-pitch internal UN thread milling for aerospace

Key Advantage: Durable BMA-grade insert designed for consistent

Overall Length: 72 mm

118° Point Angle – Optimized for general-purpose drilling and easy starts

M10 x 20 x 1

Acrow AK1-020EXT Extension – 20 mm 4pc Brass Compression Male Female Connector 1/4x1/4 Applications: Fine-pitch internal UN threadAcrow AK1 020EXT Extension 20 mm The Acrow AK1 020EXT is a precision engineered extension designed to increase boring head reach while maintaining concentricity and rigidity during deep bore machining. Manufactured from high grade hardened alloy steel, this extension delivers maximum strength, balance, and accuracy under high speed cutting conditions. It is fully compatible with Acrow BSD Series Boring Heads and other standard modular boring systems,