丹麦{左轮}JORAN合金头钻咀规格如下: 3.0mm*70mm 3.5mm*75mm 4.0mm*80mm 4.5mm*85mm 5.0mm*90mm 5.5mm*95mm 6.0mm*100mm 6.5mm*105mm 7.0mm*110mm 7.5mm*115mm 8.0mm*120mm 8.5mm*125mm 9.0mm*130mm 9.5mm*135mm 10.0mm*140mm 11.0mm*160mm 12.0mm*160mm 13.0mm*160mm 14.0mm*160mm 15.0mm*160mm 16.0mm*160mm 18.0mm*160mm 19.0mm*160mm 20.0mm*160mm 22.0mm*160mm 24.0mm*160mm