Description: 100% brand new and high quality Material: Alloy Color: as shown in pic Specification: This is a Precision Collets For Professionals And Hobbyists Demanding Ease Of Operation And High Quality Work Results. 　 Specification: Style: ER20 Hardness: 46-50HRC; Standard: DIN6499b Accuracy: 0.005mm 　 Total height: 30mm Outer diameter(Max): 20mm 　 Gripping Range: 1MM to 13MM (1mm,2mm,3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm,13mm) Fits metric shank size(s): For example,1mm Collets Fits 1mm metric shank,2mm Collets Fits 2mm metric shank. 　 Features: Made of high grade specially formulated spring steel. Hardened and precision ground. Built in self-Release design and tools will never get stuck in holder.

• This is a Precision Collets For Professionals And Hobbyists Demanding Ease Of Operation And High Quality Work Results.
• Hardness: 46-50HRC; Standard: DIN6499b Accuracy: 0.005mm
• Gripping Range: 1MM to 13MM (1mm,2mm,3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm,13mm)
• Total height: 30mm Outer diameter(Max): 20mm
• Made of high grade specially formulated spring steel. Hardened and precision ground. Built in self-Release design and tools will never get stuck in holder.

This is a Precision Collets For Professionals And Hobbyists Demanding Ease Of Operation And High Quality Work Results.LAYs