Multi-Drill Series Selection Guide According to Drill Types / Applications Application General Special m7 DIN Type ”Super Multi-Drill” ”Super Multi-Drill” SDP…U HAK Type MDW…GS Type AlCrTiN coated general DEX (TiAlCr/TiSi) coated MDS / MDW Type ”Super Multi-Drill” — purpose drill with general purpose drill coolant holes without coolant holes Solid Type øD : 3,0 ~ 16mm øD : 2,0 ~ 16mm L/D: 3, 5, 7 a K6 ~ 11 L/D: ~ 2, ~ 4 a K18 ~ 21 m7 DIN Type ”Super Multi-Drill” ”Super Multi-Drill” ”Super Multi-Drill” MDS…K-HAK Type MDS…G Type MDS…D Type TiAlN coated general For Cast Iron & Hardened Steel purpose drill with Aluminum Exotic Metals coolant holes øD : 2,0 ~ 12mm øD : 2,8 ~ 20mm øD : 1,0 ~ 16,1mm L/D: ~ 2, ~ 4 a K22 ~ 23 L/D: ~ 3 a K24 ~ 27 L/D: ~ 3 (Stock in Japan) ”Super Multi-Drill” Long Type ”Super Multi-Drill” KDS… MAK Type KDS… LAK Type General Purpose Drill Deep Hole Drilling — ”Super Multi-Drill” Brazed Type KDS Type øD : 12 ~ 26mm øD : 12 ~ 26mm L/D: ~ 3 a K48 ~ 49 L/D: ~ 5 a K50 ~ 51 Long Type ”Super Multi-Drill” Extra Long Typ ”Super Multi-Drill” KDS… DAK Type KDS… FA Type Good Chip Removal For Cast Irons and — Aluminium Alloys Delivery on request øD : 9 ~ 22mm øD : 9 ~ 22mm L/D: ~ 7 a K52 ~ 53 L/D: ~ 7 a K54 Multi-Drills Recommended Cutting Conditions by Work Materials Work Drill Steel Stainless Steel Cast Iron Non-ferrous Metalls SDP…U HAK — 50InnnnnnnI120 15InnnnnnI70 50InnnnnnI110 Brazed Type Solid Type 0,35 0,35 MDW… GS 0,2I–––––––––I 0,1I––––––I0,2 0,2I–––––––––I — — 25InnnnI80 80InnnnnnnnnnnI200 MDS…G 0,4 0,25 I–––––––– 0,45 0,25 I–––––––– KDS… AK — 50InnnnnnI90 35InnnnI50 60InnnnI100 0,35 0,35 (MAK / LAK / DAK) 0,15 I––––––––––––I 0,15 I––––––I0,25 0,2I–––––––––I — — 30InnnnI70 60InnnnnnI150 KDS… FA 0,5 0,2I–––––––––I 0,5 0,2I–––––––––I InnnnnnnnI Cutting speed v c (m/min) I––––––I Feed f (mm/rev) K4