SUMIDIA Drills

DAL / DDL

Type Type

DAL Type DDL Type

Carbon steel, alloy steel Tempered Hardened steel Stainless Heat resistant Tactile Aluminum Copper Composite 3D

Ti alloy Cast iron Polycrystalline

up to 0.28% 0.29%–steelup to 45HRC 46HRC–steelalloycast ironalloyalloyCFRP
GSdiamond

Our new product line includes a high precision type and a general type for machining holes in aluminum alloys!

  • DAL type for high precision machining is capable of making IT class 7–8 holes.
  • DDL type for general hole machining is capable of making IT class 11–12 holes. It is mainly used for machining holes for taps.
  • DAL Type
  • DDL Type

PL PL

LCF LCF OAL OAL

Grade classSUMIDIAP Steel M Stainless steelGrade classSUMIDIAP Steel M Stainless steel
ApplicableHigh speed / light cuttingNK Cast iron N Non-ferrous metalApplicableHigh speed / light cuttingNK Cast iron N Non-ferrous metal
machiningGeneral purpose cuttingS Exotic alloy H Hardened steelmachiningGeneral purpose cuttingS Exotic alloy H Hardened steel
processesRough cuttingprocessesRough cutting

Cutting dia. (shank dia.) Flute length Length Tip Cutting dia. (shank dia.) Flute length Length Tip

Cat. No. ( ) Cat. No. ( )

DCDMM LCFOALPLDC DMMLCFOALPL
DAL 0500H–0600Hø5 ≤ DC ≤ ø631.681.61.6DDL 050V–060Vø5 ≤ DC ≤ ø631.581.01.0
0601H–0700Hø6 < DC ≤ ø736.991.91.9 061V–070Vø6 < DC ≤ ø736.291.21.2
0701H–0800Hø7 < DC ≤ ø837.292.2 2.2 071V–080Vø7 < DC ≤ ø836.491.41.4
0801H–0900Hø8 < DC ≤ ø942.5 102.5 2.5 081V–090Vø8 < DC ≤ ø941.6 101.61.6
0901H–1000Hø9 < DC ≤ ø1042.8 102.8 2.8 091V–100Vø9 < DC ≤ ø1041.7 101.71.7
1001H–1100Hø10 < DC ≤ ø1153.1 113.1 3.1 101V–110Vø10 < DC ≤ ø1151.9111.91.9
1101H–1200Hø11 < DC ≤ ø1253.4 113.4 3.4 111V–120Vø11 < DC ≤ ø1252.1 112.1 2.1

(Note) When ordering, for example, specify DAL0605H for ø 6.05 mm. (Note) When ordering, for example, specify DDL105V for ø 10.5 mm.

  • Recommended Cutting Conditions
  • Precautions for Use

v : Cutting speed (m/min) f: Feed rate (mm/rev) c When using DAL type for high precision machining, use it

Cutting diameter DC(mm) ConditionsDAL TypeDDL TypeDepth of cutOil
to 80vc80to 100 to150150to 200 to250
up ø.f0.05to 0.1 to0.150.1to 0.15 to0.25L/D = 3 orEli
up tovc80to 100 to150150to 200 to250lessmuson
ø12.0f0.08to 0.13 to0.20.15to 0.2 to0.3

Min.−Optimum− Max.

M

SUMIDIA SUMIDIA Binderless

SUMICRYSTAL