grindstone
noun[C]
uk/ˈɡraɪnd.stəʊn/us/ˈɡraɪnd.stoʊn/alarge, roundstonethat isturnedby amachineand is used to maketoolssharperorsharpedgessmooth
磨石,砂轮Jean-Claude Caprara/iStock/Getty Images Plus/GettyImages
Tools
- -pronged
- adjustable spanner
- adze
- Allen key
- auger
- awl
- excavator
- gimlet
- gouge
- grapnel
- grappling iron
- guillotine
- hacksaw
- plunger
- rasp
- razor knife
- reamer
- sander
- sandpaper
- trowel