The Rodent Rucki Specs are (approx)
Steel: SR-101 at 58-60 RC
Overall Length: 23 1/2"
Blade Length: 15 1/4"
Blade Thickness: 3/16" (= .1875)
Grind Bevel: Convex
Handle: Micarta or G-10

Scrapizashi specs (from http://www.scrapyardknives.com/knives.htm):
Steel: SR-77 at 58-60 RC
Overall Length: 27 1/4"
Blade Length: 17 3/8"
Thickness: Approx .190 (= 3/16")
Blade Width: 1.5"
Grind Bevel: Convex (not on specs page; from examining mine)
Handle: Cord wrapped
Weight: 1 lb 13.2 oz. (29.2 oz)