Self Tightening Drill Chuck Keyless Lathe Hardware Tools High Speed Steel 1?16mm B18

Feature: 1. Key parts of drill chuck is made after special quenching treatment to improve durability 2. Automatically tighten keyless device support automatically increase the clamping force, very practical 3. Made of good?quality high speed steel, come with better hardness and hot hardness 4. Made of good?quality high speed steel material, possess better hardness and hot hardness 5. The hardness is 52HB, clamping range from 1?16mm, applicable machine tool is a drilling machine Specification: Item Type: Self Tightening Drill Chuck Material: High speed steel Hardness: 52HB Accuracy: 0.01mm Clamping Range: Approx. 1 ~ 16mm 0.04 ~ 0.63in Applicable Machine Tool: Drilling machine. Package List: 1 x Self Tightening Drill ChuckKey parts of drill chuck is made after special quenching treatment to improve durability Automatically tighten keyless device support automatically increase the clamping force, very practical Made of good?quality high speed steel, come with better hardness and hot hardness Made of good?quality high speed steel material, possess better hardness and hot hardness The hardness is 52HB, clamping range from 1?16mm, applicable machine tool is a drilling machine