Nupla digging tool handles can be made in a number of different configurations depending on the application. For the most heavy-duty applications that typically require a solid shank style blade, solid Classic® Nuplaglas® is used. Most of the standard shovels and spades make use of the extruded styrene 'wagon wheel' style core. This design provides very good strength while also reducing the weight of the handle. When looking to reduce the weight of the handle, Nupla has used thick and thin walled extruded styrene tubing as a core down the middle of the Nuplaglas® handle.

When applications require a light weight handle, but with outstanding strength - Nupla produces handles with a combination of either styrene round or wagon wheel tubing and a solid Nuplaglas® rebar. For Ergo Power® handles, the same and core options covered by a protective polypropylene material to produce an ergonomically designed and comfortable handle.