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Sherline/Criterion Boring Head Arbors

The Criterion S-1-1/2″ boring head is not available from Sherline Products and is shown for reference only.

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About the Sherline/Criterion Boring Head Arbors

This arbor/holder was suggested to us by one of our customers, Wayne Neilson.

We designed these two boring head arbors and holders for use with the Criterion S-1-1/2″ boring head on our Sherline milling machines.

The Criterion boring head is made in the USA and has been around for a long time. It is well made and very precise, making it a perfect fit for our machines.

The Morse #1 to 7/8-20 Criterion Boring Head (P/N 12131) mounts directly into the Morse #1 taper on our standard headstock spindle with our 1/4-20 x 5″ drawbolt and washer (included).

The End Mill Holder to 7/8-20 Criterion Boring Head (P/N 12141) threads onto our ¾-16 Morse #1 spindle thread (it comes with an included Tommy bar).

Choose the arbor or holder that best fits your needs. Then thread on your Criterion S-1-1/2″  boring head, and you are ready to start boring perfect holes.