3X(ER11 1-7mm Collet Chuck< />Total height: . 18mm< />Outer diameter(Max): . 11.5mm< />Grip range: 1MM to 7MM (1mm,2mm,3mm,4mm,5mm,6mm,7mm)< />Fi metric size(s): For example,1mm Colle Fi 1mm metric ,2mm Colle Fi 2mm metric .< />< />ER11A 5mm Extension Rod< />Height: 38 mm(when the lock )< />Shaft Hole: 5 mm (+0.02 mm) the need to install heating eansion< />ER11A : Ouide hexagonal 19 mm maximum oall diamete< />Haened and precision ground< />Built in self-Release and tools will ne get stuck in holder< />Widely used, bo, milling, drilling, silk attack, sculpture, CNC, and other psing.< />Use with any standa ER collet chucks for -thru tool applications.< />Each collet is well packed in separate protive container with label.< />Colour: < />Material: Carbon steel< />Note: The color of package is , 't accept the specified color.< />< />Package Conten:< />1 * Extension Rod< />7 * ER11 Colle< />< />Only the above package content, other produc are not included.< />Note: Light ing and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.)