A single-point tool has only one cutting edge, while a multiple-point tool has two or more cutting edges . 單刃刀具只有一個(gè)切削刃,而多刃刀具有兩個(gè)或兩個(gè)以上的切削刃。
Subland twist drills with morse taper shanks for holes prior to tapping screw threads 攻螺紋前孔用莫氏錐柄多刃階梯麻花鉆
Subland twist drills with parallel shank for holes prior to tapping screw threads and for relief countersinks 留隙沉頭鉆和攻螺紋孔前用直柄多刃階梯麻花鉆
Subland twist drills with morse taper shank for clearance holes and countersinks for countersunk head screws 留隙孔用錐柄多刃階梯麻花鉆和沉頭螺釘用沉頭鉆
Subland twist drills with parallel shank for clearance holes and counterbores for hexagon socket head cap screws and slotted cheese head screws 留隙孔用直柄多刃階梯麻花鉆和內(nèi)六角頭圓頭螺釘和一
Subland twist drills with morse taper shank for clearance holes and counterbores for hexagon socket head cap screws and slotted cheese head screws 留隙孔用直柄多刃階梯麻花鉆和內(nèi)六角頭圓頭螺釘和一