▁to ▁those ▁employed ▁on ▁a ▁modern ▁power ▁lat he , ▁the ▁tim ber ▁used ▁on ▁a ▁pole ▁lat he ▁is ▁usually ▁fresh ly ▁fel led ▁and ▁un season ed , ▁i . e ., ▁green . ▁D ry ▁wood ▁can ▁be ▁turned ▁but ▁the ▁work ▁will ▁be ▁slow ▁and ▁rough ▁on ▁the ▁cutting ▁edge ▁of ▁the ▁tools . ▁The ▁angle ▁that ▁the ▁tools ▁are ▁ground ▁is ▁closer ▁to ▁that ▁of ▁a ▁car p enter ' s ▁ch is el ▁than ▁that ▁of ▁a ▁power ▁lat he ▁tool . ▁Using ▁power ▁lat he ▁tools ▁on ▁a ▁pole ▁lat he ▁is ▁safe , ▁but ▁hard ▁work . ▁Using ▁a ▁pole ▁lat he ▁ch is el ▁on ▁a ▁power ▁lat he ▁ris ks ▁serious ▁injury , ▁since ▁the ▁forces ▁are ▁such ▁that ▁the ▁bla de ▁is ▁likely ▁to ▁break . ▁The ▁cutting ▁edge ▁on ▁P ole ▁lat he ▁tools ▁needs ▁to ▁be ▁quite ▁sharp , ▁being ▁hon ed ▁and ▁stro pped ▁beyond ▁the ▁gr inding , ▁tools ▁for ▁power ▁turning ▁should ▁not ▁be ▁improved ▁beyond ▁the ▁ground ▁edge ▁derived ▁by ▁not ▁fin er ▁than ▁ 1 2 0 ▁g rit . ▁The ▁higher ▁speed ▁and ▁fr iction ▁will ▁deg rade ▁the ▁cutting ▁edge ▁very ▁quickly . ▁In ▁this ▁aspect , ▁pole ▁lat he ▁tools ▁do ▁not ▁perform ▁satisf actor ily ▁for ▁very ▁long ▁on ▁power ▁l ath es ▁and ▁power ▁lat he ▁tools ▁give ▁a ▁poor ▁finish ▁on ▁a ▁pole ▁lat he ▁that ▁will ▁need ▁to ▁be ▁improved ▁by ▁sc rap ing ▁or ▁even ▁sand ing