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Products > Mill > HiTorque Bench Mill (SX2.7) Accessories     All Priest Tools products

Productivity Upgrade Package, HiTorque Bench Mill

         Made in United States
Productivity Upgrade Package, HiTorque Bench Mill
Part Number: 5842
Weight: 3.13 lb

Price: $239.95

In stock
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  • Incluces both the 5655 Spindle Lock and the 5633 Quill Stop in one easy, one-stop package.
  • Makes tool changes easier, faster, and more convenient.
  • Electro-magnetic interlock disables power to the motor with the fork of the Spindle Brake engaged.
  • Quick and accurate way to set quill depth of cut on 5500 Bench Top Mill.
  • Set accurate and consistent depth of cut for repeated machining operations.


The Spindle Brake provides a convenient method of locking the spindle freeing both hands to complete a tool change. A safety switch ensures that power to the motor is disabled when the Spindle Brake is engaged. This Spindle Brake features an integral flip-style locking fork which locks the mill’s spindle when engaged and does not require a separate locking device to be mounted and removed from the mill.

To operate, flip the Spindle Brake fork down over the spindle while the spindle is at rest. Then rotate the spindle by hand until the set screws in the Spindle Brake fork mesh with a spindle spline. Once the tool change is complete, lift the Spindle Brake fork up into the retracted position and you are ready to go.

The Quill Stop provides a quick and accurate way to set the quill depth of cut. It is great for drilling multiple holes to the same depth. The Quill Stop is also very handy in performing single or repeated chamfering of parts. To set up the chamfer the first time on a part, turn the mill off and simply lower the cutter to the top of the part, lock the fine feed knob, and back-off one full turn (turn the Button Nut clockwise as viewed from the top). Then start the mill and turn the Button Nut on the Quill Stop counter clockwise in small increments until the cutter contacts the part. Then continue turning the Button Nut counterclockwise and alternately lowering the quill until the desired chamfer is achieved.

The Quill Stop works equally well performing inside chamfers using typical chamfering mills, and outside chamfers using, for example, a hollow mill.

Chris' Tips

Chris Chris' Tips
The Quill Stop is simple to operate
Simply press the button and the nut disengages from the thread
Slide to desired position and release the button to engage the threads
Turning the nut then allows for precision micro‐adjustments of depth of cut

This kit comes with complete instructions for installation.

Here are the Spindle Lock installation instructions.


  • Integral Safety Switch and hand-retractable Spring Plunger
  • Approximate dimensions and weight: 5.75l x 3.75w x 1.38"h, 2 lbs.
  • The Spindle Brake plate, block, and fork are made of 6061-T6511 Aluminum
  • The hinge and fasteners are made of Stainless Steel
  • Installs in minutes
  • Made to exacting specifications in precision machining centers in the USA


Quill Stop installed on an SX3 mill

Quill Stop installed on an SX3 mill

Quill Stop installed on an SX3 mill

Quill Stop installed on an SX3 mill

Spindle Brake installed on HiTorque spindle box


This product contains the following items:
  P/N Description Quantity
Quill Stop, Deluxe HiTorque Bench Mill 5526 Quill Stop, Deluxe HiTorque Bench Mill 1
Spindle Lock, HiTorque Bench Mill, Flip Style 5655 Spindle Lock, HiTorque Bench Mill, Flip Style 1



This product works with the following mills. (If your machine is not on this list, check with us before ordering.)

  • 5500 HiTorque Bench Mill
  •   SIEG SX2.7 Bench Mill


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