Likely Star Trek: The Return (1996), part of the Shatnerverse series of books.
A blinding blue flash came from the side opposite Weinlein’s approach. Picard faltered, momentarily startled by what he saw. The Borg response was overwhelming. A configuration unlike any Borg Picard had ever encountered.
It was bipedal, but three meters tall, with piston-like legs and thick crushing disks for footpads, digging into the soil. Propellant gases hissed from its leg joints as it began to stalk forward. Two pairs of arms swung forward, searchingly, manipulators opening and closing with molecularly sharp carbon cutters and whirling blades. Their target: raw materials.
