This white plastic BT30 cnc tool holder clip with Zinc Alloy insert, it is strong enough for standing heavy tool holder chuck. It is better than black BT30 fork. But need a little bigger area for the tool magazine. It is used with tool magazing for BT30 tool holders. This white cnc tool holder clip BT 30 looks like the white ISO30 tool forks, the fix part is same, but the chuck diameter is different. BT30 CNC Toolholder Clips Specifications: 1. Made in China, famous brand, 2. Imported USA Dupont white plastic material, high quality, reinforced and anti-explosion. 3. Dynamic balance grade: G2.5, 30000rpm 4. Yaw precision: 0.005mm We offer different types of tool holders forks, such as HSK63F tool forks, ISO30 toolholder forks, DIN30 cnc forks, etc.