This 13 pcs ER20 collets are suitable for boring, milling, drilling, tapping, engraving, CNC, spindle machines and similar jobs. The set is with 1 mm to 13 mm griping range. These collets are made of high-quality steel, stable and practical in performance. It works with high precision, good elasticity and shock resistance. The set is built in self-release design and tools do not get stuck in the holder. Each collet is well packed in a separate protective container with a label. Also, each collet is marked with size, so its easy to identify them.

• Colour: Silver
• Material: 45, steel
• Model: ER20
• Accuracy: 0.02-0.04
• Clamping range: 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm
• Hardened and precision ground