Abstract: A hood module for attachment on a cylinder head of an internal combustion engine may include a hood body comprised of plastic and a bearing bracket comprised of metal as a rotatable holder for a camshaft in the hood module. The bearing bracket may be attached to the hood body with position accuracy by a joint connection so that the bearing bracket is aligned for attachment on the cylinder head through the hood body. In some examples, a joint element in the form of a sleeve may be used as part of the joint connection between the bearing bracket and the hood body.

Abstract: Drill bit of the twist drill type with turns which are held together by a drill center web and each issue in a radially extending cutting edge of which one extends to the bit axis and the other is shorter than it. This is characterized by the following features:a) the cutting edges (2,3) formed by continuos straight edges lie essentially in a plane coinciding with the bit axis (9),b) the cutting edges (2,3) form an obtuse angle (cutting angle), lying below 180.degree., of at least 175.degree.,c) the cutting edges (2,3;16) having a leading edge angle (K) of about 30.degree. with a rake angle (S.sub.1, S.sub.15) of about 30.degree. to 45.degree.,d) the diameter (D) of the drill center web (6) is at most half the bit diameter.