Jacobs 80620 BT 40 ER 20 TOOL HOLDER WITH 60 MM PROJECTION. PRE-BAL 18,000 RPM
High Precision: T.I.R <= .0004-inch at 4x D from the nose Rigidity: Made of high alloy steel properly treated for durability and longer life. Certified for accuracy and gripping torque. Through Spindle coolant standard for Jacobs ER Tool Holders. The Jacobs BT 40 ER 20 Tool Holder has 60 mm Projection and is prebalanced to 18,000 RPM. The Jacobs BT 40 ER 20 Tool Holder is used for milling, drilling, and reaming and is suitable for CNC machines and machining centers with automatic tool changers. The Jacobs BT 40 ER 20 Tool Holder features highly precise, accurate concentricity with T.I.R <= .0004-inch at 4x D from the nose. The rigidity of the Jacobs BT 40 ER 20 Tool Holder is ensured by high alloy steel properly hardened and heat treated for greater durability and longer life.