Royal 53636 ER-40 Standard Ultra-Precision Collet, 21 mm, 20 to 21 mm

• Extremely accurate, runout is guaranteed to be 6 microns (0.0002 in) TIR or better
• Royal ER collets are made from high-grade steels imported from germany and are hardened for long life
• Optimizes the surface contact between the collet and cutting tool and results in higher accuracies, stronger grip force, better part finishes and longer cutting tool life
• Royal standard ER collets contain 16 slots providing a larger gripping range than other brands

Standards/Approvals: UL Listed

Royal Ultra-Precision Collet | Standard | Series: ER-40 | 21 mm | 20 to 21 mm | ISO Code: 9001:2008