BT30 ER16 80mm Collet Chuck Tool Holder 0.0001 TIR High Precision Milling Spindle Adapter Balanced To 20000 RPM With M12 x 1.75 Drawbar Hex Nut Durable Steel Body Workhorse Industrial CNC Milling Tool Accessory

BT30 ER16 80mm Collet Chuck Adapter for CNC Milling
✔️ BT30 shank, ER16, 80mm length, 20000 RPM balanced

This precision tool holder is a BT30 spindle adapter with an ER16 collet system, designed for CNC milling machines and high-speed spindle work. It delivers solid tool gripping and consistent runout control, ideal for aluminum, steel, and other materials in production or prototyping environments. The design emphasizes stable clamping and balanced performance to minimize vibration during demanding cuts.

✅ Shank BT30; Drawbar thread M12 x 1.75; Projection 3.15 in (80 mm)
✅ Max RPM balanced to G2.5: 20000 RPM
✅ TIR 0.0001 in (0.0025 mm)
✅ Collet Nut diameter 1.08 in (27.4 mm), hex style
✅ Internal clamping ring minimizes out-of-balance and boosts grip by ~75%
✅ Precision taper surface AT3 or better, ground for smooth seating

💡 What is a BT30 ER16 collet chuck used for in CNC milling and why choose a balanced adapter?

It’s a handy tool holder that securely grips cutting tools on high-speed spindles, reducing runout and vibration. A balanced adapter helps sustain precision and tool life during demanding machining jobs.

- Handy for high-speed CNC milling with tight tolerances

- Improves rigidity and reduces chatter for cleaner cuts

- Easy installation with BT30 taper and M12 x 1.75 drawbar