Unverified85% confidenceCautionTime unknown
锯齿刃（serrated）不适合作为求生主刀：锯齿在户外几乎无法现场重新开刃，一旦变钝就报废，且不利于制作羽毛棒（feather stick）取火，纯直刃或直刃为主+局部微锯齿更实用
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85%
Confidence
Long-term
Relevance
-
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Unverified不要为生火劈柴买锯齿刃(serrated)刀，锯齿难磨且不适合batoning；生存用途选直刃更实用82% similarUnverified锯齿刀背在实际野外几乎无用——切割绳索易卡、锯木效率低于专用折叠锯，反而占据刀背用于击打/引火的空间；平直刀背才能配合火石打火并作batoning劈砍支点82% similarUnverified锯齿刃切割绳索、树枝快但几乎无法在野外磨利，且不适合削木片生火；直刃可全刃磨利、易保养、通用性强，纯户外优先选全直刃82% similarUnverified磨刀棒（honing rod）不是磨刀而是校正卷刃，只能维持锋利度不能修复钝刀；光滑钢棒适合日常校正，带纹路的会去除微量金属，陶瓷棒介于两者之间80% similarUnverified引火柴应选已劈成细条状（手指粗细）的产品，未预劈的木块需自行加工，否则难以快速引燃80% similar
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