F-20x43.5 Quick Change Collet For Drill Bits Woodworking Drilling Tool

Need to change a drill bit on a woodworking or CNC drilling machine without re-setting the spindle? The F-20X43.5 quick change collet is the wear part that does it: 20 × 43.5 mm body, 45 mm listed length, ±0.01 mm tolerance, metal body, silvery finish, CNC machined. It grips the drill bit and locates it in the existing holder, so the spindle stays on the machine. Sold from 50 pieces, with custom sizes and shapes made to your drawing.

A shop that drills wood or board all day meets the same three things: a bit that will not sit true after a change, ten minutes lost re-setting the spindle whenever a size changes, and a holder worn oval enough that the hole drifts by a few tenths. The F-20X43.5 quick change collet removes all three, because it is the part that grips the bit.

It is a quick change collet — a metal sleeve that clamps the drill bit and locates it in the spindle of a woodworking or CNC drilling machine. The part number carries the size: 20 × 43.5 mm, with a 45 mm listed length and a ±0.01 mm tolerance, so a new collet puts the bit back where the old one held it. The body is silvery and cut on CNC machining equipment, not hand-finished.

Because it is a change-over part, it is made in the sizes the machines actually run. Custom sizes and shapes are supported — send a sketch, a sample or a drawing and the collet is machined to it. It is supplied as a drill bits holder for drilling machine replacement, packed in a standard export package, from 50 pieces.

Parts are tested before they leave the workshop. Price is quoted per order, with size, quantity and finish agreed before a batch.

Eight things decide whether a collet is worth re-ordering:

• Size coded in the part number — F-20X43.5 means 20 × 43.5 mm; the number in the part code is the number on your spare-parts list, so nobody has to measure a worn sample.
• ±0.01 mm tolerance — Each collet is machined into a ±0.01 mm band, which is what keeps a re-chucked bit in the same position as the one it replaced.
• Metal body, silvery finish — Solid metal in a silvery finish, so the seat keeps its shape under clamp load instead of creeping.
• CNC machined — The bore and outside profile are cut on CNC machining equipment, so one batch matches the next.
• 45 mm listed length — 45 mm overall, so the reach matches the holder coming off the machine.
• Drill bits holder — It holds the drill bit in woodworking and CNC drilling machines; it is the wear part, not the spindle.
• Custom sizes and shapes — Anything other than 20 × 43.5 mm is quoted from your drawing or sample, so a mixed machine park can run one part family.
• Export packing and a 50-piece minimum — Standard export package, 50 pieces minimum, so a first order is one carton quantity rather than a pallet.

What a replacement collet actually buys you:

• One number to re-order. F-20X43.5 is 20 × 43.5 mm; maintenance can raise a purchase request from the parts list without pulling the old holder out first.
• Repeatable bit position. A ±0.01 mm tolerance means a bit re-chucked after a size change sits where it sat before, so the first hole after a change is not a scrap part.
• Change-over, not a rebuild. It is a drill bits holder that comes out of the spindle housing on its own, so the spindle and its alignment stay untouched.
• Fits the machines you already run. Made for drilling machine and woodworking drilling applications, including CNC heads, so no adapter has to be designed.
• Made to your drawing. Custom sizes and shapes are supported, so the second order does not have to repeat the first size if the machine park changes.
• Low entry quantity. 50 pieces MOQ lets a workshop hold a spare set on the shelf instead of ordering a pallet and tying up cash.
• One finish, every batch. Silvery metal to the same drawing each time, so operators see one part on the bench rather than three near-identical variants.
• Export-ready packing. Standard export package, so the carton goes straight onto the shelf instead of being re-packed in your own store.

20 × 43.5 mm, with a 45 mm listed overall length. The part number carries the 20 × 43.5 mm size, while 45 mm is the length given for the part, so check both figures against your spindle drawing before the first order.

Only if the spindle takes an F-20X43.5 holder. The collet is a drop-in replacement for that holder size, not a universal one — measure the bore and the length of the holder you are removing, and we will confirm from your figures.

No. This is the wear part that clamps the bit and locates it in the holder; the spindle and its housing stay on the machine and keep their alignment.

±0.01 mm. That band is what keeps a re-chucked drill bit in the same position, so hole position does not walk after a bit change.

50 pieces. Below that the CNC set-up is spread over too few parts, so the minimum is set at one batch.

Yes — custom sizes and shapes are supported. Send a drawing, a sketch or a sample with the bore, length and shoulder dimensions, and it is machined to that.

Metal, supplied in a silvery finish and cut on CNC machining equipment. The body is solid metal, not a coated plastic sleeve.

Ask for a quote with size and quantity. Price is quoted per order rather than listed, because the figure depends on the size, the quantity and the finish you specify.