Page 886 - Tungaloy Catalog

Coated solid carbide drills for steels (metric)
DMX
IT9~10
Ti (C,N,O)
External
IT class
Coated
Coolant
Steel Stainless Cast Iron Superalloys Materials
Hard
L/D = 3 (M type)
Drill dia. Dimensions (mm) Drill dia. Dimensions (mm) Drill dia. Dimensions (mm)
øDc Cat. No. Stock L R R s øDc Cat. No. Stock L R R s øDc Cat. No. Stock L R R s
3.0 DMX030M 60 21 39 7.7 DMX077M 12.4 DMX124M 135 76 59
3.1 DMX031M 7.8 DMX078M 90 48 42 12.5 DMX125M
3.2 DMX032M 7.9 DMX079M 12.6 DMX126M
3.3 DMX033M 60 24 36 8.0 DMX080M 12.7 DMX127M
3.4 DMX034M d 8.1 DMX081M 12.8 DMX128M 137 78 59
3.5 DMX035M 8.2 DMX082M 12.9 DMX129M
3.6 DMX036M 8.3 DMX083M 96 53 43 13.0 DMX130M
3.7 DMX037M 8.4 DMX084M 13.1 DMX131M
3.8 DMX038M 60 27 33 8.5 DMX085M d 13.2 DMX132M
3.9 DMX039M 8.6 DMX086M 13.3 DMX133M 144 84 60
4.0 DMX040M 8.7 DMX087M 13.4 DMX134M
4.1 DMX041M 8.8 DMX088M 98 55 43 13.5 DMX135M
4.2 DMX042M 8.9 DMX089M 13.6 DMX136M
4.3 DMX043M 63 29 34 9.0 DMX090M 13.7 DMX137M
4.4 DMX044M 9.1 DMX091M 13.8 DMX138M 147 86 61
4.5 DMX045M d 9.2 DMX092M 13.9 DMX139M
4.6 DMX046M 9.3 DMX093M 102 58 44 14.0 DMX140M
4.7 DMX047M 9.4 DMX094M 14.1 DMX141M
4.8 DMX048M 68 32 36 9.5 DMX095M 14.2 DMX142M
4.9 DMX049M 9.6 DMX096M d 14.3 DMX143M 151 89 62
5.0 DMX050M 9.7 DMX097M 14.4 DMX144M
5.1 DMX051M 9.8 DMX098M 105 60 45 14.5 DMX145M
5.2 DMX052M 9.9 DMX099M 14.6 DMX146M
5.3 DMX053M 72 34 38 10.0 DMX100M 14.7 DMX147M
5.4 DMX054M 10.1 DMX101M 14.8 DMX148M 153 91 62
5.5 DMX055M 10.2 DMX102M 14.9 DMX149M
5.6 DMX056M 10.3 DMX103M 112 66 46 15.0 DMX150M
5.7 DMX057M 74 36 38 10.4 DMX104M 15.1 DMX151M
5.8 DMX058M 10.5 DMX105M 15.2 DMX152M
5.9 DMX059M 10.6 DMX106M 15.3 DMX153M 157 94 63
6.0 DMX060M 10.7 DMX107M 15.4 DMX154M
6.1 DMX061M 10.8 DMX108M 114 68 46 15.5 DMX155M
6.2 DMX062M 81 41 40 10.9 DMX109M 15.6 DMX156M
6.3 DMX063M 11.0 DMX110M 15.7 DMX157M
6.4 DMX064M 11.1 DMX111M 15.8 DMX158M 160 96 64
6.5 DMX065M 11.2 DMX112M 15.9 DMX159M
6.6 DMX066M 11.3 DMX113M 118 71 47 16.0 DMX160M
6.7 DMX067M 11.4 DMX114M 16.5 DMX165M d
6.8 DMX068M 83 43 40 11.5 DMX115M 17.0 DMX170M 167 102 65
11 6.9 DMX069M 11.6 DMX116M 17.5 DMX180M
DMX175M
DMX070M
7.0
DMX117M
11.7
18.0
7.1 DMX071M 11.8 DMX118M 121 73 48 18.5 DMX185M

DMX119M
7.2 DMX072M 87 45 42 11.9 DMX120M 19.0 DMX190M 179 114 65
Drilling Tools 7.4 DMX074M d 90 48 42 12.1 DMX121M 135 76 59 Note: L/D = Hole depth / Drill diameter
DMX073M
12.0
7.3
19.5
DMX195M

20.0
DMX200M

12.2
DMX122M

DMX075M
7.5
DMX123M
DMX076M
12.3
7.6
d : Stocked items.
Standard cutting conditions
Feed: f (mm/rev) : Stocked in Japan
Examples Cutting speed
Work materials Hardness
(JIS) Vc (m/min) ø3 ~ ø5 ø5 ~ ø10 ø10 ~ ø16 ø16 ~ ø20
Mild steels·Low Carbon steels SS400 < 180HB 40 - 60 - 80 0.15 - 0.20 - 0.25 0.15 - 0.25 - 0.30 0.20 - 0.30 - 0.40 0.25 - 0.40 - 0.50
Carbon steels · Alloy steels S45C 180 ~ 300HB 40 - 60 - 80 0.15 - 0.20 - 0.25 0.15 - 0.25 - 0.30 0.20 - 0.30 - 0.40 0.25 - 0.40 - 0.50
High alloy steets etc. SCM440 250 ~ 350HB 40 - 55 - 70 0.10 - 0.15 - 0.20 0.15 - 0.20 - 0.25 0.15 - 0.25 - 0.30 0.20 - 0.30 - 0.40
Stainless steels SUS304 < 200HB 20 - 30 - 40 0.05 - 0.10 - 0.20 0.10 - 0.15 - 0.25 0.10 - 0.20 - 0.30 0.15 - 0.25 - 0.30
Grey cast irons FC300 < 300HB 40 - 60 - 80 0.15 - 0.25 - 0.35 0.25 - 0.35 - 0.45 0.30 - 0.45 - 0.60 0.35 - 0.50 - 0.65
Ductile cast irons FCD700 < 300HB 40 - 70 - 80 0.15 - 0.25 - 0.30 0.20 - 0.30 - 0.40 0.25 - 0.40 - 0.50 0.30 - 0.50 - 0.60
Titanium alloys Ti-6Al-4V 20 - 30 - 40 0.10- 0.15 - 0.20 0.15 - 0.20 - 0.25 0.15 - 0.25 - 0.30 0.20 - 0.30 - 0.40
Heat resistant alloys Inconel 250HB < 10 - 20 - 30 0.03 - 0.05 - 0.07 0.05 - 0.07 - 0.10 0.07 - 0.10 - 0.12 0.07 - 0.10 - 0.12
Hard materials SKD11 < 45HRC 10 - 20 - 30 0.03 - 0.05 - 0.07 0.05 - 0.07 - 0.10 0.07 - 0.10 - 0.12 0.07 - 0.10 - 0.12
Note :
• Because the cutting conditions may change depending on the material type, • For the standard DMX-type drills, somewhat large honing width intended for
hardness, machinability, machine tool, and coolant, the most appropriate drilling of general steels is applied. But, when drilling difficult-to-cut materials
conditions must be decided while referring the chip control condition and having high hardness, requiring lowering the feed rate, the honing width
tool failure mode. should be modified.
• When using the smaller side of the diameter range, the feed rate should be • The drills with special honing specification are made to order on request.
set lower. • Inconel is trademark of Huntington Alloys, Inc.
• When drilling difficult-to-cut materials, coolant supplying conditions are
critical for successful drilling. The use of constant and flood coolant is highly
recommended.
Regrinding
11–70 Relating Cutting Conditions Procedures Technical reference
pages
(14-1)
(11-70)
(11-76)