high speed steel drills 高速钢钻头
high-speed steel twist drills 高速钢麻花钻
High-speed steel two-flute twist drills 高速钢双凹槽麻花钻
Twist drills are usually made of high-speed steel, although carbide-tipped drills are also available.
虽然也有硬质合金刀尖的钻头，麻花钻一般用高速钢制成。
youdao
应用推荐
模块上移
模块下移
不移动