Drill Adapter v2 for Sentro Knitting Machine (3/8in Drive Bit)

Design preview. Rendered from the file, not a photo.

The maker says it fits: Sentro Knitting Machine (3/8in drive bit compatible). See the proof

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What it does

Shaped to connect a Sentro knitting machine to a power drill
Built for a 3/8in drive bit, so check your bit size before you order
Thicker outer wall than the original adapter version
Lets you power your knitting machine with a drill instead of your hand
Made to order in the USA after you place your order

Why turn a knitting machine crank by hand when a drill can do the work? This adapter connects your Sentro knitting machine to a power drill, so you can spin the machine with the drill instead of your arm.

This is the v2 version of the adapter, made for a 3/8in drive bit. It has a thicker outer wall than the original design. The shape fits onto the drive bit and links up to your Sentro knitting machine.

Check that your drill uses a 3/8in drive bit before you order, since this version is built for that size only. It is made to order in the USA once you place your order.

1.7k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What it fits

The maker says it fits: Sentro Knitting Machine (3/8in drive bit compatible)

That is the maker's word, not a fit we measured. Check the size below against your own.

Sentro Knitting Machine (3/8in drive bit compatible)From the maker's own listing title, checked 2026-08-13. See the original post

Brand names here only say what this part fits. We are not connected to those companies, and they did not make or check this part.

What you get

This design prints as one piece.
Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.