ear and mastoid chisel 耳乳突凿 ; 耳及乳突骨凿

straight ear and mastoid chisel 直形耳及乳突骨凿

curved ear and mastoid chisel 弯形耳及乳突骨凿

mastoid flat chisel 乳突平凿

Lucae's ear and mastoid chisel 路卡耳及乳突骨凿

Bishop's ear and mastoid chisel 毕晓普耳及乳突骨凿

Passow's ear and mastoid chisel 帕索耳及乳突骨凿

Stacke's ear and mastoid chisel 斯塔克耳及乳突骨凿

Bruning's ear and mastoid chisel 布鲁宁耳及乳突骨凿