扩孔钻头的英文

broaching bit

counterbore cutter head

enlarging bur

expanding bit

+更多解释...

hole dilating drill drill

reamer bit

reamerbit

redrill bit

underreaming bit

• 扩孔:    reaming; under-rea ...
• 钻头:    boring crown; bore ...
• 平底扩孔钻头:    counterbore cutter ...