black with cobalt twist drill(耀黑含钴麻花钻用)

industrial grade [2+3+4+5 + 6mm] 5 pack(工业级【2＋3＋4＋5＋6mm】 5支装) industrial grade [6+8 + 10mm] 3 pack(工业级【6＋8＋10mm】 3支装) industrial grade [6+7+8+9 + 10mm] 5 pieces(工业级【6＋7＋8＋9＋10mm】 5支装) industrial grade [8+10 + 12mm]](工业级【8＋10＋12mm】) industrial grade [2-10mm] 9 pcs household essential(工业级【2-10mm】9支装家用必备) industrial grade [2+4+6+8+10+12+14]](工业级【2＋4＋6＋8＋10＋12＋14】) industrial grade 2mm [10 pcs]](工业级2mm【10支】) industrial grade 2.5mm [10 pcs]](工业级2.5mm【10支】) industrial grade 3mm [10 pcs]](工业级3mm【10支】) industrial grade 3.2mm [10 pcs]](工业级3.2mm【10支】) industrial grade 3.5mm [10 pcs]](工业级3.5mm【10支】) industrial grade 4mm [10 pcs]](工业级4mm【10支】) industrial 4.2mm [10 pcs]](工业级4.2mm【10支】) industrial 4.5mm [10 pcs]](工业级4.5mm【10支】) industrial grade 5mm [10 pcs]](工业级5mm【10支】) industrial grade 5.2mm [10 pcs]](工业级5.2mm【10支】) industrial 5.5mm [10 pcs]](工业级5.5mm【10支】) industrial grade 6.0 [5]](工业级6.0【5支】) industrial grade 6.5 [5]](工业级6.5【5支】) industrial grade 7.0 [5]](工业级7.0【5支】) industrial grade 7.5 [5]](工业级7.5【5支】) industrial grade 8.0 [5]](工业级8.0【5支】) industrial grade 8.5 [5]](工业级8.5【5支】) industrial grade 9.0 [5]](工业级9.0【5支】) industrial grade 9.5 [5]](工业级9.5【5支】) industrial grade 10.0 [5]](工业级10.0【5支】) industrial grade 10.5 [5]](工业级10.5【5支】) industrial grade 11.0 [5]](工业级11.0【5支】) industrial grade 11.5 [5]](工业级11.5【5支】) industrial grade 12.0 [5]](工业级12.0【5支】) industrial grade mm [1 piece]](工业级13.0mm【1支】) industrial grade mm [1 piece]](工业级14.0mm【1支】) ordinary 2.0 [1 piece] no iron(普通2.0mm【1支】不可打铁)