ER32 Coolant Through Straight Shank Extension Tool Holder With O Ring Seal And Slotted Nut, 50mm Collet Nut, M40x1.5 Threads, One And A Half Inch Shank, 4.65 Inch Overall Length, Heavy Duty Pro Grade 0.0001 TIR

Single ER32 Coolant-Through Extension Tool Holder, 4.65in OAL
✔️ ER32 coolant-through holder: 50mm collet nut, M40x1.5 threads

This heavy-duty pro-grade ER32 coolant-through extension tool holder is designed for CNC milling and drilling applications. It feeds coolant directly through the shank to the cutting tool, improving chip flushing and tool life. Typical use includes deep-hole drilling, long-reach milling, and operations requiring efficient cooling at the tool tip.

✅ Collet Nut Diameter 50 mm (1.97 in); M40x1.5 threads
✅ ER32 Slotted Collet with O-ring end seal
✅ Shank: 1-1/2 in (38.1 mm); shank length 3.42 in (87 mm)
✅ Overall length 4.65 in (118 mm)
✅ TIR 0.0001 in (0.0025 mm)
✅ Coolant-through system with O-ring end seal

💡 What is an ER32 coolant-through extension tool holder used for in machining setups?

Handy for maintaining tool life and improving cut quality in demanding milling tasks. - Long reach milling and deep hole work - Through-spindle coolant keeps chips down at the tip - Works with standard ER32 tooling and M40x1.5 threads