L/D L/D Basic Selection of Drilling Tools Application ranges of drilling tools Indexable & Head-Changeable Drills (Page 8-5) 4 (Page 8-23) 3.5 2 Effective Drill 3 Indexable Drill 2 6 7 12 14 16 20 22 26 28 Drill Diameter (mm) Hole diameter tolerance* L/D Tool diameter Hole diametertolerance* L/D Tool diameter Hole diametertolerance* ø12.5 - ø17 + 0.25 / 0 TID 1.5 ø6 - ø22.9 + 0.05 / 0 2 ø17.5 - ø26 + 0.3 / 0 TID/TIDC 3 ø6 - ø22.9 + 0.05 / 0 ø12.5 - ø17 + 0.25 / 0 ø10 - ø17.9 + 0.08 / 0 3 TID 3.5 ø17.5 - ø26 + 0.3 / 0 ø18 - ø19.9 + 0.095 / 0 *Just for reference Solid Drills DSM 20 15 (Page 8-16) 10 DSW (Page 8-19) 5 4 3 2 1 0.9 3 5 10 15 Drill Diameter (mm) 8-2