Drilling Tool Head changeable drill Head changeable drill series ø6 mm - ø22.9 mm / L/D = 1.5, 3, 3.5 8-3 Solid drill High performance solid carbide drill 8-16 DSM / DSM-CP ø0.1 mm - ø3 mm / L/D = 5, 10, 15 8-16, 8-18 DSW ø3 mm - ø12 mm / L/D = 3, 5 8-20 Indexable drill Indexable drill with 4-corner inserts for various drilling applications ø12.5 mm - ø26 mm / L/D = 2, 3 8-23 8-1