Simple past tense and past participle of chamfer.(verb)
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Use "chamfered" in a sentence
"It consists of a steel blade, having the form of a wedge at the end and being slightly hollow-chamfered, which is joined with a handle."
"Mind you – I did once write up a polcol where the lass had changed her own tyre and put all 5 nuts on the wrong way – you know, with the chamfered end out!"
"Note the vertical surfaces at the wheel arches and the crisp defining light lines around the cabin's greenhouse, as well as the chamfered hood line."