He used his knowledge of CNC machining to create his own process of manufacturing bagpipes, and strays away from the traditional methods in many ways.

Because every part is manufactured on a programmable CNC machine, changes can be made easily to individual sets of bagpipes based on customer requests or design changes.

[4] In 2015, NASA astronaut Kjell N. Lindgren played a set of McCallum bagpipes on the International Space Station.

[5] Red Hot Chilli Pipers founder Stuart Cassells uses a special chanter manufactured by McCallum Bagpipes, which uses flute keys instead of the normal holes.

[6] The MacLeod Ale Brewing Company had McCallum Bagpipes manufacture custom plastic drones to serve as tap handles in their brewery located in Van Nuys, California.