A drill body for a drill, the drill body having a rotational axis and being provided with a central insert seat and a peripheral insert seat at a front end portion of the drill body, wherein the central insert seat is configured for receiving a central cutting insert for cutting a central portion of a hole having a hole diameter D, and the peripheral insert seat is configured for receiving a peripheral cutting insert for cutting a peripheral portion of the hole, wherein the drill body comprises a central chip flute extending from the central insert seat along a periphery of the drill body and a peripheral chip flute extending from the peripheral insert seat along a periphery of the drill body, and wherein the central chip flute has a central chip flute cross section in a plane extending perpendicularly to the rotational axis, and the peripheral chip flute has a peripheral chip flute cross section in the plane extending perpendicularly to the rotational axis, each of the central chip flute cross section and the peripheral chip flute cross section being formed within a circumscribed circle of the drill body in the plane extending perpendicularly to the rotational axis, wherein the peripheral chip flute cross section has a centre line extending in the plane and through the rotational axis, wherein the peripheral chip flute cross section has a radially inner side extending perpendicularly to the centre line, and a first lateral side and an opposite second lateral side connecting to the radially inner side, characterised in that, the radially inner side has a length L1 within a range of L1 = 0.95 x D/4 to L1 = 1.2 x D/4, wherein each of the first and second lateral sides (34, 34') has a length LS1, LS2 within a range of D/4 to 1.3 x D/4 and wherein the first and second lateral sides (34, 34') diverge from each other in a direction radially outwards from the radially inner side. the central insert seat is configured for receiving a central cutting insert for cutting a central portion of a hole having a hole diameter D, and the peripheral insert seat is configured for receiving a peripheral cutting insert for cutting a peripheral portion of the hole, wherein the drill body comprises a central chip flute extending from the central insert seat along a periphery of the drill body and a peripheral chip flute extending from the peripheral insert seat along a periphery of the drill body, and wherein the central chip flute has a central chip flute cross section in a plane extending perpendicularly to the rotational axis, and the peripheral chip flute has a peripheral chip flute cross section in the plane extending perpendicularly to the rotational axis, each of the central chip flute cross section and the peripheral chip flute cross section being formed within a circumscribed circle of the drill body in the plane extending perpendicularly to the rotational axis, wherein the peripheral chip flute cross section has a centre line extending in the plane and through the rotational axis, wherein the peripheral chip flute cross section has a radially inner side extending perpendicularly to the centre line, and a first lateral side and an opposite second lateral side connecting to the radially inner side, characterised in that, the radially inner side has a length L1 within a range of L1 = 0.95 x D/4 to L1 = 1.2 x D/4, wherein each of the first and second lateral sides (34, 34') has a length LS1, LS2 within a range of D/4 to 1.3 x D/4 and wherein the first and second lateral sides (34, 34') diverge from each other in a direction radially outwards from the radially inner side.