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Blackstone Global is a holding parent/holding company for the four different companies listed below.



Palmac is a specialty Tool Distributor founded in Natick, MA in the 1960's.  We moved to Chelmsford, MA in 2010 and have expanded our operations.  We sell new tools and spare parts, repair almost any tool (no mater how old), and rent calibration equipment as well as several tools.

Distributor in NY and New England for Atlas Copco tools, Cleco, Dotco etc.  services, repairs and calibrations.



Manufacturer of shadow boards. Utilizing OSAAP's unique CAD/CAM processes for Shadow Board and Foam inlay design and manufacturing.  The core of our marketing strategy is to giving the customer the power to do real-time shadow board design by providing free CAD software.  Simply take an image of the products you need Shadow Board control over and upload the image into our free CAD software and design your board.

Ko-ken USA


Ko-ken Tools is a fourth generation family owned and operated business in Japan, with 140+ employees. The focus of the business is entirely on Sockets and Socket wrenches. The entire manufacturing process is in-house at Ko-ken, from design, cold forging, heat treat and plating.

Assembly Products

Electronic Circuit

Assembly Products is a Distributor and Manufacturers' Rep firm servicing the Industrial, Electronics, and Medical Device assembly marketplace.  We focus on adding value to our customers manufacturing processes through applications engineering support, service and, technical sales expertise.

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