HSK63F-OZ25-80 G2.5 CNC Tool Holders 30000RPM Precise Nut Clamping Tool Holders

Need a holder that stays true when a woodworking spindle runs fast? The HSK63F-OZ25-80 is a steel nut clamping tool holder: HSK63F shank, OZ25 collet nut supplied with the body, 80 mm A dimension, balanced to G2.5, rated to 30,000 RPM. The nut clamps the collet straight into the seat, so a tool change is one nut turn and no chuck stack. It is listed for milling and drilling on woodworking CNC machines. Price is quoted per order.

Three things go wrong with a holder on a high-speed woodworking spindle: the tool creeps out of the seat after a few hundred changes, the body vibrates once the spindle passes a certain speed, and every change takes minutes because clamping is done in stages. None of these raises an alarm. They show up as a stepped edge on a panel or a batch that has to be re-cut.

The HSK63F-OZ25-80 is a nut clamping tool holder for HSK63F spindle noses. An OZ25 collet nut comes with the body, so the collet is clamped by one nut on one seat instead of a chuck stack between spindle and cutter. The body is balanced to G2.5 and rated to 30,000 RPM.

HSK63F is the interface named in the model code, so the holder seats on the spindle nose and in magazine positions that already take HSK63F bodies. The A dimension is 80 mm, the length given for this variant. The OZ25 nut takes standard OZ25 collets, so the shank range you can run is the range your own collet set covers.

The body is steel, and the holder is listed as a woodworking CNC tool holder for milling — face milling, profile milling, contouring — and for drilling and reaming. It is a replacement body, not a machine: no spindle change, no new tooling system. Price is quoted per order.

What separates this body is the interface, the clamping nut and the balancing grade — all three are stated, not assumed.

• HSK63F shank — the interface named in the model code, so the holder seats on a spindle nose and in magazine positions already cut for HSK63F bodies.
• OZ25 collet nut included — the nut ships with the body, so the holder clamps as soon as a collet is fitted, with no second part number to order.
• One nut, one seat — clamping force goes through a single nut onto a single collet seat, so a tool change is a nut turn rather than a stack to assemble.
• G2.5 balancing — balanced to G2.5, the grade stated for this holder, which is what keeps vibration down as spindle speed climbs.
• 30,000 RPM rating — the speed rating given in the product information, so the body is specified for high-speed milling and drilling, not general-purpose work.
• 80 mm A dimension — the length value given for this variant, so reach is known before the holder goes into a program.
• Steel body — steel is the stated material, so the taper and the collet bore hold their form through repeated clamping.
• Milling and drilling — listed for face milling, profile milling, contouring, hole-making, reaming and high-speed machining on woodworking CNC machines.

When a holder starts to run out there are two habits: run it and sort the scrap later, or stop the spindle and wait for a replacement to come from outside. A body that matches the interface you already run is the third option.

• Change the holder, not the spindle. HSK63F is the interface in the model code, so a worn body is swapped on its own and the spindle stays bolted to the machine.
• The tool stops walking. An OZ25 nut clamping one collet seat holds the shank at the same depth from one change to the next, so a nested batch stays on one set of coordinates.
• Speed without the shake. G2.5 balancing and a 30,000 RPM rating are the two numbers that decide whether a body is usable at high spindle speed.
• One code, no measuring. HSK63F, OZ25 and 80 are printed in the model number, so a purchase order is raised from the code alone.
• Reach you can plan for. The 80 mm A dimension is stated for this variant, so the holder is chosen against the reach the program actually needs.
• The nut is not a second order. The OZ25 collet nut ships with the body, so there is no extra part to chase before the first cut.

HSK63F spindle noses. The interface is named in the model code, and the holder is listed for woodworking CNC machines, so it suits a machine whose spindle nose and magazine positions already take HSK63F bodies. If your spindle takes BT, HSK-A or another interface, this is not the holder for it.

Yes. The collet nut is included — the product information states with collet nut: yes — and the nut is OZ25, so the holder clamps as soon as you fit a collet. There is no separate nut to order.

Whatever your OZ25 collets accept. The gripping range belongs to the collet, not to the body, so the holder neither adds nor removes shank sizes: fit the OZ25 collet for the shank you are running and the nut clamps it in the seat.

Up to 30,000 RPM. That is the speed rating stated in the product information, and the body is balanced to G2.5 for that range. Check that your machine's spindle is rated for the speed you intend to run before setting the program.

It limits vibration at speed. G2.5 is the balance grade stated for this holder, and an unbalanced body is what shows up as chatter on a contour and as wear on the spindle bearings, so the grade matters more the faster you run.

The size value of this variant: the A dimension is 80 mm in the product information. It is the length figure for this body, so it is the number to compare when you are choosing reach rather than guessing from a photo.

Milling and drilling on woodworking CNC machines. The product information lists face milling, profile milling, contouring, hole-making, reaming and high-speed machining, so one body covers roughing passes and finishing passes without a second holder.

Price is quoted per order — contact us for a quote with the model HSK63F-OZ25-80 and the quantity you need. The holder is a steel nut clamping body with the OZ25 nut included; send the quantity and we come back with the price.