There are additionally training bokuto for suburi that are made longer so as to be of similar length to odachi (long swords), as well as ones, such as those used by the Tennen-rishin school, for practicing the correct hand position and so on that are not lengthened, but weigh more and are fatter than normal shinken (real swords).
長さを大太刀に近い長さにした素振り用の木刀や、天然理心流剣術のように長さは変えず、通常の真剣以上の重さにし、太く作る事で、正確な手の内を鍛える事等を目的とした、鍛錬用の木刀も存在する。