ER11A Router Collet Chuck Extension Rod 12mm Shank Straight 100mm Length CNC Milling Tool Holder For Machinists DIY Hobbyists And Milling Machines Pro

ER11A Collet Chuck Extension, 12mm Shank, 100mm Length
✔️ 12mm shank, 100mm length, ER11A fit, 1x pack, 20CrMnTi steel

The ER11A Collet Chuck Extension rod is a straight-shank accessory that adds extra reach to ER11A collets, making it ideal for routers, CNC mills, and milling machines in workshops and hobby shops.

✅ Shank diameter 12 mm (0.47 in)
✅ Shank length 100 mm (4 in)
✅ Total length 125 mm (5 in)
✅ Material 20CrMnTi, toughened and precision ground
✅ Straight shank with clamping nut for secure grip

💡 What is a collet chuck extension used for in CNC routing and milling?

It adds reach and versatility, letting you use longer tools and reach tight spaces.

• Increases tool reach for router tables and milling machines
• Improves grip and stability with a straight shank and clamping nut
• Compatible with ER11A collets for easy upgrades