The Erickson CAT40 3/4" Facemill Holder is a durable and high-quality toolholding adapter designed for CNC, metalworking, and manufacturing applications. With a taper size of CAT40 and an arbor diameter of 3/4", this facemill holder is suitable for use with steel materials. It features a coolant through design and an overall length of 5.1380", providing stability and precision during machining processes. Ideal for various industries, this Erickson facemill holder (EDP: 3641492) is a reliable and essential addition to any workshop or factory.