Digging “tools” would be more appropriate, if you are trying to cut anything other than dirt you will be sorely disappointed.
DK-1 Steel Digging Knife
The stainless steel used in the DK-1 is selected for toughness. Full tang blade, 8″ long, 1″ wide, and 1/4″ thick. Weight is just under 10 ounces. Anodized aluminum slab handles attached with stainless steel fasteners.
DK-3 Large Non-Conductive Probe
The non-conductive probe provides more digging ability than a standard round probe, and can be safer to use than a steel knife under some circumstances. These are a consumable item, depending on the soil type and use the tip will wear down over time, so there is no lifetime warranty on the non-conductive probes. 6″ blade, 11″ overall.
DK-4 Compact Non-Conductive Probe
Same as above, but with a 5″ blade, 8-7/8″ overall.