Diamond Coating (SUMIDIA) Drills DAL / DDL
Composite CFRP
Aluminum Alloy
PCD
For General to High Precision Drilling of Aluminum Alloys ● High precision DAL is able to produce holes of IT Class of 7 to 8. ● General DDL is able to produce holes of IT class 11 to 12, mainly for pre-tap hole drilling.
J
This product is a made-to-order item.
DAL
*Refer to N74 for the tolerance of m5, h8 Dimensions ( mm )
Grade
SUMIDIA
High-speed/Light General-purpose Roughing
N
Process
Fig 1
Overall Length OAL
Flute Length LCF
PL
Tip PL
Dia. (Shank Dia.) DC(DCON) ø5 ≤ DC ≤ ø6 ø6 < DC ≤ ø7 ø7 < DC ≤ ø8 ø8 < DC ≤ ø9 ø9 < DC ≤ ø10 ø10 < DC ≤ ø11
Fig
Cat. No.
DAL 0500H to 0600H DAL 0601H to 0700H DAL 0701H to 0800H DAL 0801H to 0900H DAL 0901H to 1000H DAL 1001H to 1100H DAL 1101H to 1200H
31.6 36.9 37.2
81.6 1.6 91.9 1.9 92.2 2.2
1 1 1 1 1 1
LCF
OAL
42.5 102.5 2.5 42.8 102.8 2.8 53.1 113.1 3.1 53.4 113.4 3.4
ø11 < DC ≤ ø12 1 Ordering numbers should be handled according to this example: ø6.05mm drill → DAL0605H.
This product is a made-to-order item.
DDL
*Refer to N74 for the tolerance of h8 Dimensions ( mm )
Grade
SUMIDIA
High-speed/Light General-purpose Roughing
N
Process
Fig 1
Overall Length OAL
Flute Length LCF
PL
Tip PL
Dia. (Shank Dia.) DC(DCON) ø5 ≤ DC ≤ ø6 ø6 < DC ≤ ø7 ø7 < DC ≤ ø8 ø8 < DC ≤ ø9 ø9 < DC ≤ ø10 ø10 < DC ≤ ø11
Fig
Cat. No.
DDL 050V to 060V DDL 061V to 070V DDL 071V to 080V DDL 081V to 090V DDL 091V to 100V DDL 101V to 110V DDL 111V to 120V
31.5 36.2 36.4 41.6 41.7 51.9
81.0 1.0 91.2 1.2 91.4 1.4 101.6 1.6 101.7 1.7 111.9 1.9
1 1 1 1 1 1
LCF
OAL
ø11 < DC ≤ ø12 1 Ordering numbers should be handled according to this example: ø10.5mm drill → DDL105V. 52.1 112.1 2.1
Important Notes ● When using DAL type for high precision machining, select a high rigidity machine and high precision holder. ● Supply coolant generously at the entrance of the hole.
Recommended Cutting Conditions Dia. DC ( mm ) DAL
( v c : Cutting Speed (m/min), f : Feed Rate (mm/rev))
DDL
Depth of Cut
Oil
80 - 150
150 - 250 0.1 - 0.25 150 - 250 0.15 - 0.3
v c
ø8.0
0.05 - 0.15 80 - 150 0.08 - 0.2
f
L/D=Below 3 Emulsion
v c
ø12.0
f
Min. - Max.
J90
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