Page 442 - THREADING CATALOG

THREAD DRILLING DCNT (M8-M24) Dnominal (1) DCN-DCX k7 DCN (3) SDL DCX LTA 6 E T 21.00 R 1.240 I 43.80 C DCONMS DF 16.00 45.0 SSC (5)
DC_2
Drill Body with Exchangeable
Heads, Chamfering Inserts,
Internal Coolant and One Flat
Shank. Used for Pre-Tread Holes.
PL
LS
M
FTDZ
SDL
LS
DF
Designation
(2)
PL
(4)
DC_2
DCONMS
LTA
M8
6.50
6.90
6.80
DCNT 068-021-12A-M8
13.50
6.5
12.00
DCNT 085-026-12A-M10
12.00
48.80
1.200
8.50
15.50
8.90
8.50
8.0
M10
17.00
26.00
45.0
DCNT 102-030-16A-M12
30.00
10.0
10.40
M12
1.500
10.20
10.00
20.00
16.00
52.50
17.00
48.0
DCNT 120-035-16A-M14
35.00
19.00
M14
12.00
12.00
12.40
1.800
DCNT 140-039-16A-M16
2.100
39.00
14.00
14.0
16.00
23.00
14.40
14.00
66.90
21.00
48.0
M16
DCNT 175-042-20A-M20
17.90
69.30
42.00
20.00
2.700
25.00
17.0
50.0
24.00
M20
17.50
17.00
21.90
28.00
M24
21.00
21.00
48.00
DCNT 210-048-25A-M24
56.0
21.0
25.00
32.00
80.00
3.200
• Hole tolerance: D+0.05 in average conditions. However, it can be higher or lower according to machine and tooling conditions 61.00 16.00 21.00 48.0 12.0
• Do not mount smaller drilling heads other than the specified range of the drill body.
(1) Pre-thread hole diameter
(2) Used for standard thread size
(3) Cutting diameter minimum
(4) Cutting diameter maximum
(5) Seat size code
Inserts: ICP • ICP-2M • ICK • ICK-2M • ICM • ICN • QCP-2M • HCP-IQ • FCP • ICG • IHP • AOMT-Chamfering
1. Drilling pre-thread blind holes: 2. Drilling pre-thread through holes:
drilling with a 45° chamfer drilling with a 45° chamfer
Pre-Thread Recommended Hole Diameters with DCNT Drills
Drill Designation Dia. Range M Thread Head Dia. MF Head Head Dia. TR Thread Head Dia. M Helicoil Thread Head Dia.
DCNT 068-021-12A-M8 6.5-6.99 M8 6.8
MF10x1 8.99
DCNT 085-026-12A-M10 8.5-8.99 M10 8.5 TR10x1.5 8.6
MF10x1.25 8.8
MF11x1 10.0 TR12x2 10.2
MF12x1 10.99
DCNT 102-030-16A-M12 10.0-10.99 M12 10.2 M10 10.5
MF12x1.25 10.8
MF12x1.5 10.5 TR14x4 10.5
MF13x1 12.0 TR14x2 12.2
MF14x1 12.99
DCNT 120-035-16A-M14 12.0-12.99 M14 12.0 M12 12.5
MF14x1.25 12.8 TR16x4 12.3
MF14x1.5 12.5
14.0
DCNT 140-039-16A-M16 14.0-14.99 M16 14.0 MF16x1 14.99 TR18x4 14.3 M14 14.99
MF16x1.5 14.5
DCNT 175-042-20A-M20 17.0-17.99 M20 17.5 MF20x2 17.99 TR22x5 17.3
DCNT 210-048-25A-M24 21.0-21.99 M24 21.0 MF22x1 21.0
Drill Designation Dia. Range UNF Thread Head Dia. UNC Thread Head Dia. BSW Thread Head Dia. BSF Thread Head Dia.
DCNT 068-021-12A-M8 6.5-6.99
DCNT 085-026-12A-M10 8.5-8.99 UNF3/8-24 8.5
DCNT 102-030-16A-M12 10.0-10.99 UNC1/2-13 10.8 BSW1/2-12 10.5 BSF1/2-16 10.99
DCNT 120-035-16A-M14 12.0-12.99 UNC9/16-12 12.3 BSF9/16-16 12.5
DCNT 140-039-16A-M16 14.0-14.99 UNF5/8-18 14.5
DCNT 175-042-20A-M20 17.0-17.99 UNF3/4-16 17.5
DCNT 210-048-25A-M24 21.0-21.99
Drill Designation Dia. Range NPT Thread Head Dia. BSP Thread Head Dia. UNEF Thread Head Dia. UNJF Helicoil Thread Head Dia.
DCNT 068-021-12A-M8 6.5-6.99
DCNT 085-026-12A-M10 8.5-8.99 NPT1/8-27 8.5 G1/8-28 8.8 UNEF3/8-32 8.7 UNJF3/8-24 8.6
DCNT 102-030-16A-M12 10.0-10.99
DCNT 120-035-16A-M14 12.0-12.99
DCNT 140-039-16A-M16 14.0-14.99 NPT3/8-18 14.5 UNEF5/8-24 14.8 UNJF5/8-18 14.5
DCNT 175-042-20A-M20 17.0-17.99 NPT1/2-14 17.5 UNEF3/4-20 17.8
DCNT 210-048-25A-M24 21.0-21.99

ISCAR
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