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MWE SA/MA Type Drill (2xD / 3xD)
Drill Diameter &3.0 &6.0 &6.0 &10.0 &10.0 &14.0 &14.0 &20.0
Work Material Conditions Cutting Speed Feed Cutting Speed Feed Cutting Speed Feed Cutting Speed Feed
P Mild Steel Hardness (m/min) (mm/rev) (m/min) (mm/rev) (m/min) (mm/rev) (m/min) (mm/rev)
Carbon Steel < 180HB 85 0.20 85 0.25 90 0.30 100 0.35
Alloy Steel (35 100) (0.15 0.30) (45 120) (0.15 0.35) (55 120) (0.20 0.35) (60 130) (0.20 0.40)
180 280HB 80 0.20 90 0.25 90 0.30 90 0.35
(40 95) (0.15 0.30) (50 120) (0.15 0.35) (60 130) (0.15 0.35) (60 130) (0.20 0.40)
280 350HB 75 0.15 80 0.20 85 0.25 85 0.30
(35 80) (0.15 0.20) (45 115) (0.15 0.25) (55 115) (0.15 0.30) (55 115) (0.20 0.35)
M Stainless Steel < 200HB 20 0.10 25 0.12 25 0.15 25 0.20
(15 30) (0.05 0.15) (15 30) (0.05 0.15) (15 30) (0.10 0.20) (15 30) (0.10 0.25)
K Cast Iron Tensile Strength 70 0.25 75 0.30 80 0.35 85 0.40
(40 85) (0.15 0.30) (50 90) (0.20 0.35) (50 95) (0.20 0.40) (55 95) (0.30 0.45)
< 350N/mm2
Ductile Cast Iron Tensile Strength 65 0.20 70 0.25 75 0.30 80 0.35
< 450N/mm2 (35 80) (0.15 0.25) (45 85) (0.15 0.30) (45 90) (0.20 0.35) (50 90) (0.20 0.40)
N Aluminium Alloy 80 0.20 90 0.25 100 0.30 110 0.35
(70 90) (0.10 0.25) (80 100) (0.15 0.30) (90 110) (0.20 0.35) (100 120) (0.20 0.40)
S Heat Resistant Alloy 20 0.10 25 0.12 25 0.15 30 0.20
(10 25) (0.05 0.15) (15 30) (0.05 0.15) (15 30) (0.10 0.20) (25 35) (0.10 0.25)
MWS (Internal Coolant) (3xD / 5xD / 8xD)
Drill Diameter &3.0 &6.0 &6.0 &10.0 &10.0 &14.0 &14.0 &25.0
Work Material Conditions Cutting Speed Feed Cutting Speed Feed Cutting Speed Feed Cutting Speed Feed
P Mild Steel
Hardness (m/min) (mm/rev) (m/min) (mm/rev) (m/min) (mm/rev) (m/min) (mm/rev)
< 180HB 110 0.20 130 0.25 150 0.30 160 0.35
(50 120) (0.15 0.25) (80 140) (0.20 0.35) (90 170) (0.20 0.40) (100 180) (0.20 0.40)
Carbon Steel 180 280HB 90 0.20 110 0.25 130 0.25 140 0.30 DRILLING MWS / MWE DRILLS
Alloy Steel 280 350HB (50 100) (0.15 0.25) (70 120) (0.20 0.35) (80 140) (0.20 0.40) (100 150) (0.20 0.40)
M Stainless Steel < 200HB 80 0.20 90 0.25 110 0.25 120 0.30
(40 90) (0.15 0.30) (60 110) (0.15 0.30) (70 130) (0.15 0.40) (90 140) (0.20 0.40)
K Cast Iron Tensile Strength
Ductile Cast Iron < 350N/mm2 60 0.10 80 0.20 90 0.25 100 0.25
(20 100) (0.05 0.15) (40 120) (0.10 0.25) (50 120) (0.15 0.30) (60 120) (0.15 0.30)
N Aluminium Alloy Tensile Strength
< 450N/mm2 100 0.25 130 0.30 150 0.35 160 0.35
(70 120) (0.15 0.30) (100 140) (0.20 0.35) (110 160) (0.25 0.40) (120 170) (0.25 0.40)
60 0.20 70 0.20 90 0.25 100 0.30
(30 80) (0.15 0.25) (40 90) (0.15 0.30) (50 110) (0.20 0.40) (60 110) (0.20 0.40)
120 0.25 150 0.30 160 0.40 170 0.50
(80 150) (0.20 0.35) (100 170) (0.20 0.50) (100 170) (0.20 0.80) (100 180) (0.20 1.00)
S Heat Resistant Alloy 20 0.10 25 0.12 25 0.15 30 0.20
(10 25) (0.05 0.15) (15 30) (0.05 0.15) (15 30) (0.10 0.20) (25 35) (0.10 0.25)
MWS Super Long Drill (Internal Coolant) (10xD / 15xD / 20xD / 25xD / 30xD) CUTTING
DATA
Drill Dia. & 3.0 & 6.0 & 6.0 & 10.0 & 10.0 & 14.0
Work Material Conditions Cutting Speed Feed Cutting Speed Feed Cutting Speed Feed
P Mild Steel (mm/rev) (m/min) (mm/rev) (m/min) (mm/rev)
Hardness (m/min)
< 180HB 90 (50 120) 0.20 (0.15 0.30) 110 (80 140) 0.25 (0.20 0.35) 130 (90170) 0.30 (0.200.40)
Carbon Steel 180 280HB 80 (50 100) 0.20 (0.15 0.30) 90 (70 120) 0.25 (0.20 0.35) 110 (80140) 0.25 (0.200.40)
Alloy Steel 280 350HB 70 (40 90) 0.20 (0.15 0.25) 80 (60 110) 0.25 (0.15 0.30) 90 (70 130) 0.25 (0.15 0.35)
50 (20 100) 0.10 (0.05 0.15) 70 (40 120) 0.20 (0.10 0.25) 80 (50 120) 0.25 (0.150.30)
M Stainless Steel < 200HB 90 (70 120) 0.25 (0.15 0.30) 110 (100 140) 0.30 (0.15 0.35) 130 (110160) 0.35 (0.250.40)
50 (3080) 0.20 (0.15 0.25) 60 (4090) 0.20 (0.15 0.30) 80 (50110) 0.25 (0.20 0.40)
K Cast Iron Tensile Strength 100 (80 150) 0.25 (0.20 0.35) 130 (100 170) 0.30 (0.20 0.50) 140 (100170) 0.40 (0.20 0.80)
< 350N/mm2
Ductile Cast Iron Tensile Strength
< 450N/mm2
N Aluminium Alloy
S Heat Resistant Alloy 20 (1025) 0.10 (0.05 0.15) 20 (1530) 0.12 (0.05 0.15) 20 (15 30) 0.15 (0.100.20)
(Note 1) When drilling deeper than l/d=10, lower the cutting speed shown in the table above.
(Note 2) Be sure to drill a guide hole.
(Note 3) Raise to the above regular cutting revolution after inserting the long drill into the guide hole.
(Note 4) For pilot hole drilling, Mitsubishi’s MPS drill is recommended.
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