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Boring Head with Straight Shaft

Only available in inch, metric coming soon

SKU: 3054S Category:

Product Description

The Straight Shaft Boring Head was designed for those who are using an ER-16 or 3C headstock. Our standard boring head (P/N 3054) has a #1 Morse tapered shaft and is held in the 3/4 x 16 headstock spindle with a drawbolt. The holder has a straight shaft and is held in the spindle using a 3/8″ collet.*

A boring head provides a means of accurately machining almost any size hole. It is also capable of machining stepped holes for seating bearings and internal grooves for lock rings. Boring tools cut like lathe boring tools with the difference being the tool moves rather than the work.

*NOTE: Sherline Products does not sell 3/8″ collets used with the ER-16 or 3C headstock spindles. Those are available through Hardinge Inc. or other tool supply sources.

What’s included:

The Sherline straight-shaft boring head comes with a hex key for making adjustments; however, the cutting tools are not included. The boring head is designed for use with standard 3/8″ (10mm) diameter shank boring tools. For best results, the length of the tools should be kept to a minimum. You will find that a short tool gives you less chatter and it will be easier to hold tolerances.

Sherline also offers a fly cutter with a straight shaft  for use in an ER-16 or 3C headstock spindles.



The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.


Always wear safety glasses when operating machine tools.

31070 Gear drive pin
31560 4-40 x 7/8″ SHC Screw (P/N 31561 metric)
31570 Adjustment Dial, Boring Head w/Screw (31575 metric)
31580 Boring head, primary (top w/straight shaft)
31590 Boring head, secondary (bottom)(P/N 31591 metric)
40340 10-32 x 1″ SHC Screw
40570 3/32″ hex key
40330 10-32 x 5/8″ SHC Screw

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Domestic orders are shipped Monday – Friday. Expedited orders must be placed by 9 am PST to ship the same day.

Orders shipping ground have a processing time of 7 working days for domestic orders and 14 working days for international orders. CLICK HERE for more information on our shipping and order policies.


Most merchandise can be returned within 30 days of the purchase date. A refund will be issued to the original form of payment at the original selling price. View our complete return policy and/or start your return online here.