Accusize Industrial Tools ER20 Collet Chuck Extension Rod, 3/4″ Straight Shank, 2.50″ Shank Length, 3.93″ OAL, 0.04″–0.511″ Capacity, 0223-0210

Accusize Industrial Tools ER20 Collet Chuck Extension Rod, 3/4″ Straight Shank, 2.50″ Shank Length, 3.93″ OAL, 0.04″–0.511″ Capacity, 0223-0210

• Compatible with ER20 collets, accommodating tool diameters from 0.04″–0.511″; extends reach for milling, drilling, tapping and countersinking on CNC and manual machines.
• Constructed from high-quality alloy steel hardened to HRC 56–60, providing strength and wear resistance for reliable tool holding.
• Precision-ground to achieve a total indicated runout of 0.0002″ or better, ensuring accurate tool alignment and minimal vibration during high‑precision operations.
• Features a 3/4″ straight shank with 2.50″ length and 3.93″ overall length; hex collet nut diameter 1.34″; internal 3/8-16 thread and 0.90″ flat-to-flat dimension for secure tightening.
• Designed for machinists, engineers and hobbyists who require precise, repeatable tool extension when working with steel, stainless steel and alloy workpieces.