HSK63F-ER40-80 CNC Machining Parts Woodworking Tool Holders High Precision CNC Engraving

A knife-shaped cutter only behaves if the holder holding it is rated for the speed your spindle runs. The HSK63F-ER40-80 is a CNC machine knife handle with an HSK63F shank, an ER40 collet and 80 mm gauge length A, listed for 30,000-36,000 rpm. ER40 takes 3 mm to 26 mm metric or 1/8 in to 1 in imperial shanks, and ER32 is available on the same order. It mounts on precise CNC routers and machining centers, and it is sold as a spare for CNC engraving machines.

Three things slow a router shop down: a knife-shaped cutter that creeps out of the holder after a few hundred metres of cut, a tool change that becomes a spindle stop because the holder cannot be re-colleted on the machine, and a holder rated below the speed the spindle runs. The HSK63F-ER40-80 is aimed at those three.

It is a CNC machine knife handle: an HSK63F shank on the spindle side, an ER40 collet on the cutter side, 80 mm of gauge length (A) between them. Because the cutter is clamped by a collet rather than a fixed bore, one body covers 3 mm to 26 mm metric and 1/8 in to 1 in imperial shanks.

The listed band is 30,000-36,000 rpm, and that is where the shank type earns its keep: HSK63F seats the holder on the spindle instead of hanging it off a taper, so the cutter stays where the drawing puts it at the top of the band as well as the bottom. The ER40 nut closes the collet along its full length, spreading grip over the whole shank.

It is sold as a spare for CNC engraving machines and used on precise CNC routers and machining centers. ER32 is available on the same order. Price is by quotation; other models and sizes on request.

The list below is the working set: shank, collet, reach, speed, and what happens when a cutter dulls.

• HSK63F shank — The spindle side is an HSK63F shank, so a holder change is a spare-part job rather than a spindle rebuild.
• ER40 collet system — An ER40 collet covers 3 mm to 26 mm metric and 1/8 in to 1 in imperial shanks from one body.
• ER32 on the same order — Machines already tooled for ER32 take this holder in ER32, so spare lists carry one part number, not two.
• 80 mm gauge length A — 80 mm between spindle face and collet nut is what gets a short knife cutter down into a deep engraving.
• 30,000-36,000 rpm — Listed across that band, so it matches an engraving head's spindle speed rather than a router's lower ceiling.
• Collet change, not holder change — A dull cutter comes off at the ER40 nut and a fresh one goes in; the holder stays on the spindle.
• High precision, stated — High precision is the listed main feature; the part is specified for precise CNC routers and machining centers.
• Built as a spare — It carries the spare-part role for CNC engraving machines, so a worn holder is replaced on its own.
• Other models and sizes — Anything outside ER40/ER32 and the 3-26 mm span is quoted on request.

The usual choice is a cheap holder swapped every season or a spindle tooling package priced for a production cell. This part sits where a job shop actually buys.

• A holder swap is no longer a spindle job. With an HSK63F shank and an ER40 collet, the worn part comes off the spindle face and a new one goes on, so the machine is down for minutes.
• Collet stock instead of holder stock. 3 mm to 26 mm and 1/8 in to 1 in run from one body, so the shelf holds collets, not a separate holder per cutter size.
• Speed headroom you can quote from. 30,000-36,000 rpm is the listed band, which is the figure you check before putting a knife cutter into an engraving head.
• One part number, two collet systems. An ER32 machine and an ER40 machine order the same holder, so the spares list stays short.
• Reach where the cutter has to go. 80 mm gauge length A is the difference between engraving a deep pocket and stopping at the depth the holder allows.
• A price you can plan against. Quotation on request builds the number from the collet size and quantity you order, not from a list price for a size you never run.

ER40. ER32 is available on the same order if your spindles already run ER32.

3 mm to 26 mm metric, 1/8 in to 1 in imperial. That ER40 range covers the knife cutters and small end mills a router head runs.

Yes, 30,000-36,000 rpm is the listed operating band; above it you are outside what this part is rated for.

Only if the spindle takes an HSK63F shank. Check that interface first; 80 mm is the gauge length A.

Yes. The same holder comes with an ER32 collet system, so the collets already in your rack still fit.

Reach. 80 mm of gauge length A puts the collet nut further from the spindle face, so a short cutter reaches a deep engraving.

Just the holder. It is a spare for CNC engraving machines, replacing the knife handle on the spindle you already have.

Yes, other models and sizes are available on request. Price is by quotation against the collet system and quantity you order.