Item Type: Drill Chuck Model: APU16-MT3 Material: Steel Hardness: 40HB Maximum Clamping Bit: Approx. 16mm / 0.6in Applicable Machine Tool: Drilling machine Flat tail integrated drill chuck is mainly used for drilling machines ModelCapacityDimension mminchD(approx.)D1(approx.)L(approx.)L1(approx.)L2(approx.) MT3-161.0-161/32-5/823.825mm / 0.9in57mm / 2.2in99.5mm / 3.9in208mm / 8.2in219.5mm / 8.6in 1The product come with excellent locking device to ensure good product performance 2Made of good-quality steel material, sturdy and durable for a long service life 3Integrated design of tool holder, which possess high accuracy and high hardness 4Hardness for 40HB, maximum clamping bit is 16mm, very practical, saving time and effort 5Flat tail integrated drill chuck is mainly used for drilling machines, helps a lot in your life1 x Drill Chuck