Tool Holder 2.76" Projection R8 ER32 Collet Chuck

High Quality R8 ER40 Collets Holders R8 ER collet chuck arbor R8-ER, ER collet clamping tool holder of various sizes, high speed and high precision machining. Mechanical spindle and cutting tools and other accessories. High Precision R8-ER shank Tool Holder. For the market for automatic tool change device. R8 tool holders for mechanical spindle and cutting tool and other accessory tool connection. 1. Material: 20CrMnTi 2. Run out of the inside shank cone ≤0.0001" 3. Constructed of alloy steel hardened to 56 – 60 HRC for long, durable service life 4. Rear thread for pull stud is 7/16" - 20UNF 5. Surface: Nickel coating and polishing nickel coating.