NT40-OZ25 Tool Holder Collet Chuck – High-Speed CNC Spindle Holder For NT30/NT40/NT50 R8 MT MT3 MT4 MT5, OZ25/OZ32 Series (20CrMnTi Steel, 10000 RPM)

About This Product

If you're running a CNC mill or machining center, this NT40-OZ25 tool holder is built to keep things precise.

Made from high-quality 20CrMnTi steel, it's carburized and heat-treated to HRC58° hardness – tough enough for heavy milling, drilling, and tapping.

The overall clamping precision is 0.

015mm, so your tools run true with minimal runout.

This holder is rated for speeds over 10,000 RPM, which is great for high-speed machining.
The surface is sandblasted and coated for extra wear resistance and corrosion protection – plus it feels smooth and clean in your hands.

The true roundness and surface roughness are both held to tight standards (around 0.

8mm), so you get consistent performance job after job.

It's designed for milling cutters, drill bits, taps, and more.

Available in NT30, NT40, and NT50 shank sizes with OZ25 or OZ32 collet series.

The cryogenic and heat-aging treatments during manufacturing improve dimensional stability over time.

Solid construction, reliable grip, and a great fit for professional shops.