The NATA is a cross between a knife and an axe.
It is forged in SKS-51 (JIS) steel and the special Genki rubber grip absorbs the shock very well: the vibrations are hardly transmitted to the hand or arm.

model # 555-24 
Blade length: 240 mm
13.35" (33.91cm) overall
Suited for fresh wood
Authentic Premium Japanese Steel
Dimensions: 460 x 125 x 45 mm
Weight: 875 g