May a man cut bodily hair on Chol Hamoed?

Yes.[1] However some Poskim[2] are stringent on this matter.

[1] Michaber 546:5 regarding women shaving; Implication of M”A 531:12 [Shhaar Hatziyon 531:15]; Chol Hamoed Kehilchasa 3:5

[2] Pischeiy Olam brought in Kaf Hachaim 531:4; See Chol Hamoed Kehilchaso ibid who argues on this conclusion