Wood-drilling device (10a, 12a; 10b, 12b) with at least one
drill shank (30a, 32a; 30b, 32b), with at least one
drill tip (26a, 28a; 26b, 28b), and with at least one
cutting body (18a, 24a; 18b, 24b), wherein the
cutting body (18a, 24a; 18b, 24b) has at last one
cutting wing (66a, 68a; 66b, 68b), wherein at least one of the cutting wings (66a, 68a; 66b, 68b) has a cutting surface (116a, 118a; 116b, 118b) which is arranged on a base side (70a, 70b) facing towards the
drill tip (26a, 28a; 26b, 28b). It is proposed that the cutting surface (116a, 118a; 116b, 118b) is formed by at least two mutually adjoining cutting partial surfaces (122a, 124a, 126a, 128a; 122b, 124b, 126b, 128b) which are angled away from a drill plane (74a), oriented perpendicular to the rotation axis (16a, 22a; 16b, 22b), in the direction of the drill shank (30a, 32a; 30b, 32b) and which are angled to each other at an angle (130a; 130b) and each have an angle to the rotation axis (16a, 22a; 16b, 22b) different from 0°.