Dolphin 12x1.5 mm Steel R-8 ER Adaptor

The "Dolphin 12x1.5 mm Steel R-8 ER Adaptor" appears to be an adaptor designed to connect an R8 collet chuck system to an ER collet chuck system. Here's a breakdown of its features: 1. **Size**: The "12x1.5 mm" likely refers to the dimensions of the adaptor. It could indicate that the adaptor has an outer diameter of 12 millimeters and a thread pitch of 1.5 millimeters. This specification is important for ensuring compatibility with the respective collet chuck systems. 2. **Material**: The adaptor is made of steel, which is a durable and commonly used material in machining applications. Steel offers strength and reliability, making it suitable for the demands of tool holding in machining operations. 3. **R8 to ER Adaptor**: The adaptor serves as a connector between an R8 collet chuck system and an ER collet chuck system. R8 collet chucks are often used in milling machines, while ER collet chucks are known for their versatility and widespread use in the machining industry. This adaptor allows for compatibility between these two types of collet chuck systems. Overall, the Dolphin 12x1.5 mm Steel R-8 ER Adaptor is a tool holder accessory used in machining operations to facilitate the use of ER collet chucks with machines equipped with R8 spindles. Its steel construction ensures durability and reliability, while its specific dimensions ensure proper compatibility with the respective collet chuck systems.