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 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 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 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 diverge from each other in a direction radially outwards from the radially inner side . <EOS>