FIELD: process engineering.
SUBSTANCE: invention relates to hand-held tools. Guide rails may be interconnected by means of plug-in joints and have lengthwise guide. Every guide rail has, at least, one exposed recess. Recess has ribbing composed by lengthwise and diagonal ribs. Lengthwise ribs extend from recess one end side to opposite side. Diagonal ribs are arranged at an angle to lengthwise ribs. Both diagonal and lengthwise ribs are interconnected at intersections.
EFFECT: higher flexural and torsional rigidity.
16 cl, 3 dwg
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