'Razor' in the Bible

'All days of the vow of his separation a razor doth not pass over his head; till the fulness of the days which he doth separate to Jehovah he is holy; grown up hath the upper part of the hair of his head.

'And thus thou dost to them to cleanse them: sprinkle upon them waters of atonement, and they have caused a razor to pass over all their flesh, and have washed their garments, and cleansed themselves,