半圆刀具 [机] astragal tool

凸半圆铣刀 convex milling cutter ; round convex milling cutter ; half-round convex milling cutter

半圆键槽铣刀 woodruff key seat cutter ; woodruff keyway milling cutter ; Cutters for woodruff keyseats

半圆铰刀 half round reamer

半圆形刮刀 half-round scraper

半圆弯头刮刀 half round bent scraper

双半圆拉刀 [机] double semicircular broach

凹半圆铣刀 half-round concave milling cutter ; concave milling cutter