Taap Knife & Kodj Axe Manufacturing Workflows

1. Lithic Technology of the Southwest: Unique Composite Implements

The material culture of southwest Western Australia is globally renowned among archaeologists for two distinct, highly specialized composite tools: the kodj (or kodja) axe and the taap (or dabba) saw-knife.¹ Unlike edge-ground axes common in eastern Australia, the kodj and taap relied upon sophisticated modular lithic components embedded within compounded thermoplastic resin (boorool).² These tools represented an optimal balance of raw material efficiency, ergonomic portability, and mechanical versatility.³

2. Anatomy and Manufacturing Workflow of the Kodj Axe

The kodj was a dual-headed hammer-axe constructed without stone grinding or wooden sockets.⁴ The tool comprised four distinct components:

• A short, straight handle (approx. 30 cm) carved from tough acacia or peppermint wood, with a pointed proximal end used as a grub probe.⁵
• A cutting bit consisting of a sharp, unground flake of dense basalt or dolerite struck from river cobbles.⁶
• A blunt hammer bit consisting of a rounded, high-density granite or quartz pounding stone.⁷
• A large mass of compounded balga grasstree resin (boorool) mixed with charcoal and animal dung, encasing the two stone bits on opposite sides of the wooden handle.⁸

The user held the handle firmly, utilising the sharp stone for cutting notches in tree trunks when climbing for possums, and the blunt stone for cracking open marrow bones, pounding roots, or crushing tough acacia pods.⁹

3. The Taap Knife: Micro-Blade Saw Technology

The taap was a precision surgical and butchery saw-knife.¹⁰ It consisted of a flat wooden handle (approx. 20 to 25 cm long) into which a narrow longitudinal groove was cut along one edge.¹¹ A series of three to six small, razor-sharp flakes of struck quartz or chert were set into the groove in a straight line, secured firmly with heated balga resin.¹² The result was a serrated cutting edge capable of slicing effortlessly through thick kangaroo pelts, carving intricate ceremonial patterns on message sticks, and performing delicate bodily cicatrix scarification.¹³

4. Modular Maintenance and Archaeological Signatures

Both the kodj and taap were designed for rapid field maintenance.¹⁴ If a quartz flake broke or dulled during butchery, the hunter held the resin joint near a small fire to soften the adhesive, plucked out the broken stone, inserted a fresh flake from their travel bag, and allowed the resin to cool and harden in seconds.¹⁵ This modular design explains why archaeological excavations across the Darling Scarp reveal thousands of discarded quartz micro-flakes—the durable signatures of ancient tool maintenance.¹⁶