▁st alling ▁it ▁out ▁or ▁leaving ▁no ▁bore ▁hole . ▁If ▁the ▁soil ▁is ▁rock y ▁the ▁tool ▁may ▁be ▁def lect ed ▁or ▁fail ▁to ▁p ound ▁forward ▁due ▁to ▁its ▁in ability ▁to ▁break ▁the ▁rock . ▁These ▁draw back s ▁can ▁be ▁overcome ▁by ▁direction al ▁b oring ▁or ▁straight ▁line ▁horizontal ▁under ground ▁b oring ▁machines ▁that ▁use ▁either ▁wet ▁( s lick ▁b oring , ▁sl ur ry ▁b oring ) ▁or ▁dry ▁( au ger ▁b oring , ▁jack ▁and ▁bore ) ▁methods . ▁ ▁See ▁also ▁ ▁D itch ▁W itch ▁ ▁The ▁Bor ing ▁Company ▁ ▁V erme er ▁Company ▁ ▁Category : P neum atic ▁tools <0x0A> </s> ▁In ▁the ▁geometry ▁of ▁hyper bol ic ▁ 4 - space , ▁the ▁order - 4 ▁ 1 2 0 - cell ▁h oney comb ▁is ▁one ▁of ▁five ▁compact ▁regular ▁space - fill ing ▁t ess ell ations ▁( or ▁h oney com bs ). ▁With ▁Sch lä fli ▁symbol ▁{ 5 , 3 , 3 , 4 }, ▁it ▁has ▁four ▁ 1 2 0 - cell s ▁around ▁each ▁face . ▁Its ▁dual ▁is ▁the ▁order - 5 ▁t esser actic ▁h oney comb , ▁{ 4 , 3 , 3 , 5 }. ▁ ▁Rel ated ▁h oney com bs ▁It ▁is ▁related ▁to ▁the ▁( order - 3 ) ▁ 1 2 0 - cell ▁h oney comb , ▁and ▁order - 5 ▁ 1 2 0 - cell ▁h oney