R8 Milling Chuck Set 23pcs Metric Imperial $ 68.63 Product Information: Material: 65Mn Applicable machine tools: milling machine Hardness: 44-48 Accuracy: 0.015 Taper: R8 Clamping range: 3-20 Specifications: R8-13 only, R8-23 only, bulk discount Packing List: Milling chuck x23PCS