1. Made of carbon steel material for wear resistance and durability.2. Rubber handles for anti-slip and comfort grip.3. Use to tighten ER-C type spindle. Extend the rotation time of the mechanical nut.4. Suitable for Engraving Machine Spindle, CNC Lathe Keyless Drill Chuck, and most tool holders, such as spring clamping nut CNC tool holder.5. Easy to use, practical and convenient.Specification:Fit for: APU13 Drill ChuckOverall Size: 170 x 4mm / 6.69-inch x 0.16-inch (L*T)Opening Width: 43mm / 1.69-inchMaterial: Drop Forged Carbon SteelHandle Material: RubberFinish: Black OxidizedPackage Content:2 x C Type Spanners.
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