Knifemaking Knife Blade Guthook Knife. This Knife from the great folks at Knifemaking is a 4" guthook blade with a full tang and brass guard. Don't go outside without the Survival Knifemaking Survival Knife Blade Guthook Survival Knife. Specifications for Knifemaking 4" Guthook Knife w/ Fixed Blade: Manufacturer: Knifemaking Blade Length: 4 in Knife Application: Fixed Blade Blade Finish: Stainless Steel Blade Grind: Combo Features of Knifemaking Knife Blade Guthook Knife: 4" guthook blade Full tang Brass guard Bulk packed Made in Pakistan Package Contents: Knifemaking Knife Blade Guthook Knife Knifemaking BLSM02: Knife Blade Guthook Knife