This ER11 collet set is hardened, precision ground and the accuracy is 0.02mm (0.0008").
Made of high-quality formulated spring steel, durable and sturdy.
Gripping Range: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm,4mm, 4.5mm,5mm, 5.5mm, 6mm, 6.5 mm, 7mm, 1/4", 1/8".
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