NT APU Self-fasten Drill Chuck  

NT APU Self-fasten Drill Chuck, Application range: clip diameter: 0.5-16mm bit .Mechanical spindle and cutting tools and other accessories.High Precision NT shank Tool Holder ,balanced G6.3 or G2.5 For choose.   Milling Nt Apu Drill Chuck Specification: 1.NT APU drill chuck Product Type: NT30 / 40/50-APU (see model below)  2.Lathe Drill Chuck Material: high quality carburizing alloy steel, black treatment and fine grinding  3.Taper Shank: Tolerance Level <AT3  4.Hardness: HRC 56-58  5.Carburizing depth: 0.8mm ± 0.2mm  6.Maximum beating: <0.005mm = 5um  7.Surface roughness: Ra <0.005 mm  8.Application: clamping the diameter of 0.5-16mm drill Model Clamping Range D L Min Max NT30-APU08-80  1-8 36.3 75…