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| Drill bits inogadzirwa muhukuru hwemetric kubva pa6mm kusvika 25mm uye inch wides kubva pa1/4 ″ kusvika 1 ″. |
 | Kuenzaniswa nemamwe marudzi ezvibooreso, zvibooreso zvinogona kutariswa kureba. Chibooreso chipfupi-pfupi chinowanzo wanikwa chakareba 200 mm (8 inches) kureba. Iyo yakareba ndeye 600mm, inova 24 inches kana 2 tsoka! Anogona kushandiswa zviri nyore kurovera mumadziro emadziro, zvitunha kana makobvu ehuni. |
| Ground uye ice drill bits zvakatokura. Machizi epakati erudzi urwu anowanzoita 150 mm (6 mukati) mudhayamita uye 800 mm (31 mukati) kureba. |
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| Kufanana nemamwe marudzi akawanda ezviboorero, zvibooreso zvinowanikwa mu "pfupi" fomu ine hurefu hwese hwe100-120 mm (4-4¾ inches). Aya mabhiti mapfupi anobatsira pakuboora makomba munzvimbo dzakasimba, sekugadzira maburi pamatanda edenga. |
