在具有三个或更多个切削丝锥的多槽钻（5，6，7）相同的周向间距底刃下提供了一种用于被分成外边缘（51，61，71）和内刀片（52，62，72）具有插入的高潮点（53，63， 73）。 至少所述外切削刃和副切削刃（8）位于之间的切割角（9）在一个共同的径向平面中，如果可能的话，至少外Teille外切割。 这些可以位于共同的包络面，例如锥形表面和钻头轴（11）为正的角度，例如zwischein倾斜60°和65°。 最里面的高潮点（53）沿轴向在最远的前面突出。 相应的内刀片（52）为负的至少从下至多相对于钻头轴线的内切刃（72）的外顶点点（73）是倾斜的，而平均内切刃（62）在所述钻头轴（11）被超越延长。 从四个切削刃，也可以设置两个对置的相同或几乎相同的定心切削刃。 以这种方式特殊位置精度，即使在具有增加的钻孔性能不利的物质条件具有高表面质量来实现的。

In a multi-fluted gun drills with three or more cutting lips (5, 6, 7) provided for under the same circumferential pitch face cutting edges are divided into outer edges (51, 61, 71) and inner cutting edges (52, 62, 72) with an intervening culmination (53, 63, 73). At least the cutting edges (9) between the outer edge and secondary cutting edge (8) lie in a common radial plane, if possible, at least the outer parts of the outer edges. These may lie on a common envelope surface, such as a conical surface and to the drill axis (11) to a positive angle, such zwischein 60 ° and 65 ° inclined. The innermost culmination point (53) protrudes axially in front of the furthest. The corresponding inner cutter (52) is negative at least, from the outer culmination point (73) next the inner cutting edge (72) at the most in relation to the drill axis is tilted while the central inner cutter (62) is extended beyond the drill axis (11) beyond. From four cutting edges and two opposing identical or nearly identical centering cutting edges may be provided. In this way exceptional positional accuracy is achieved with high surface quality even in unfavorable material conditions with enhanced drilling performance.