Integral Drill Chuck Keyless with Straight Shank Lathe Hardware Accessories APU13?R8?M12

Feature: 1. Straight shank integrated design come with high accuracy and good rigidity 2. Automatically tighten keyless device, support automatically increase the clamping force, very practical 3. Key parts of drill chuck come with special quenching treatment, which will improve durability 4. 40Cr material, have high tensile strength, yield strength and hardenability, high fatigue strength and good toughness 5. The hardness is 40HB, clamping range from 1?13mm, and applicable to milling machine Specification: Item Type: Integral Drill Chuck Material: 40Cr Accuracy: 0.08mm Hardness: 40HB Clamping Range: Approx. 1 ~ 13mm 0.04 ~ 0.51in Applicable Machine Tool: Milling machine . Package List: 1 x Integral Drill ChuckStraight shank integrated design come with high accuracy and good rigidity Automatically tighten keyless device, support automatically increase the clamping force, very practical Key parts of drill chuck come with special quenching treatment, which will improve durability 40Cr material, have high tensile strength, yield strength and hardenability, high fatigue strength and good toughness The hardness is 40HB, clamping range from 1?13mm, and applicable to milling machine