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Jack-in-a-Box Puzzle Kit

SKU: J1000 Category:

Product Description

Everything you need to make a Jack-in-a-Box puzzle

Here’s a fun project that you can make that will amaze your friends. When done, a tiny jack is contained inside a cube with a hole in it. How did they get in there? How was it made? The kit includes an aluminum cube to practice on and a brass cube for your finished puzzle. Producing the finished cube requires a series of drilling and boring processes explained in the step-by-step illustrated instructions that come with the kit.

Detailed Equipment List You Will Need for this Project

NOTE: If you already own a CNC mill you do not need a rotary table. You can, instead, write a G-code sequence to accomplish the task.

What’s Included:

The kit includes both an aluminum and a brass billet of 3/4″ square stock cut to slightly over 3/4″ long ready for you to make this interesting puzzle on your Sherline mill. Included are a 3/8″ end mill holder, a 1/8″ End Mill, a 3/8″ Shank (2-Flute), a key ring, machinable was, and instructions.

Click on the images below to view examples of finished cubes in various materials and sizes.

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.

Download PDF J1000 Instructions

Instructions PDF Download

Download PDF Rididax Brochure

Instructions PDF Download

Download PDF Rigidax Handling Instructions

Instructions PDF Download

Download PDF Rigidax WS Material Safety Data Sheet

Instructions PDF Download

¾” cube raw stock (1 ea. 6061-T6 aluminum and brass)
3709 3/8″ diameter end mill holder
7402 1/8″ End Mill, 3/8″ Shank (2-Flute)
J10001 1 oz. packet of Water Soluble, Machinable Wax
T10001 1.25″ Diameter Key Ring (spring-tempered steel)


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

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Most merchandise can be returned within 30 day 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.