Er Spanner

Approx. Rs 154 / PieceGet Latest Price

​An ER spanner, also known as an ER collet nut wrench, is a specialized tool designed to tighten or loosen the collet nuts of ER series collet chucks used in CNC machining. These wrenches are essential for securing toolholders and ensuring accurate machining operations.​

Key Features:

• Compatibility: ER spanners are specifically designed for use with ER series collet chucks, which are commonly used in CNC milling and turning applications.​

• Design: Typically featuring a square or hexagonal head, ER spanners provide a secure grip for applying the necessary torque to collet nuts.​

• Material: High-quality steel construction ensures durability and resistance to wear during frequent use.​

Selecting an ER Spanner:

• Size Matching: Ensure the spanner size corresponds to the ER collet size in use (e.g., ER32, ER40).​

• Handle Design: Choose between straight or T-handle designs based on ergonomic preferences and required torque application.​

• Quality Assurance: Opt for spanners from reputable manufacturers to guarantee precision and longevity.