MITSUBISHI MATERIALS CORPORATION
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TAF TYPE DRILL

INSERT RECOMMENDATION
CHIP BREAKER RECOMMENDATION
1st Choice : 1st Recommendation 2nd Choice : 2ndRecommendation
Breaker Work Material
P M K N
Low Carbon Steel Medium Carbon Steel Alloy Steels Stainless Steel Cast Iron Ductile Cast Iron Aluminum Alloy
GCMT GPMT GCMT GPMT GCMT GPMT GCMT GPMT GCMT GPMT GCMT GPMT GPGT
U1 1st Choice 1st Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice  
U2 2nd Choice 2nd Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice
U3   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice  

INSERT GRADE RECOMMENDATION
1st Choice : 1st Recommendation 2nd Choice : 2ndRecommendation
Breaker Work Material
P M K N
Low Carbon Steel Medium Carbon Steel Alloy Steels Stainless Steel Cast Iron Ductile Cast Iron Aluminum Alloy
GCMT GPMT GCMT GPMT GCMT GPMT GCMT GPMT GCMT GPMT GCMT GPMT GPGT
UP20M 1st Choice 1st Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice 2nd Choice  
GP20M 2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice    
UE6020   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice  
US735   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice   2nd Choice  
VP15TF   2nd Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice 1st Choice  
TF15                         1st Choice

RECOMMENDED CUTTING CONDITIONS (TAF Series)
Work Material Hardness Cutting Speed (SFM)
L/D = 2, L/D = 3 L/D = 4
ø.469"-ø.594"
ø12.0-ø14.5mm
ø.625"-ø2.250"
ø15.0-ø56.0mm
ø.625"-ø1.250"
ø18.0-ø340mm
P Low Carbon Steel 150 HB 500
(328-650)
656
(500-1000)
500
(328-650)
Medium Carbon Steel 180-280 HB 393
(250-525)
500
(375-600)
325
(262-400)
Alloy Steel 180-280 HB 393
(250-525)
500
(375-600)
325
(262-400)
M Stainless Steel 200 HB 325
(250-400)
500
(375-650)
325
(262-400)
K Gray Cast Iron 150 HB 400
(250-525)
500
(375-600)
460
(360-525)
Ductile Cast Iron 140 HB 325
(250-500)
500
(375-600)
325
(250-400)
N Aluminum Alloy - - 985
(655-1200)
820
(490-1150)

Workpiece Chip
Breaker
Feed (inch/rev)
Drill Diameter
ø.469"-ø.594"
ø12.0-ø14.5mm
ø.625"-ø.875"
ø15.0-ø22.5mm
ø.938"-ø1.313"
ø23.0-ø34.0mm
ø1.375"-ø1.813"
ø35.0-ø48.0mm
ø1.938"-ø2.250"
ø49.0-ø56.0mm
P Low Carbon Steel U1 .002
(.0015 - .004)
.0028
(.0015 - .004)
.003
(.0015 - .004)
.004
(.002 - .005)
.003
(.0015 - .004)
U2 .002
(.0015 - .004)
.003
(.0015 - .005)
.004
(.0015 - .005)
.005
(.002 - .005)
.004
(.0015 - .005)
U3 - .003
(.0015 - .005)
.004
(.0015 - .005)
.005
(.002 - .005)
.004
(.0015 - .005)
Medium Carbon Steel U1 .002
(.0015 - .004)
.003
(.002 - .005)
.0045
(.003 - .006)
.005
(.003 - .007)
.0045
(.003 - .006)
U2 .002
(.0015 - .004)
.004
(.002 - .006)
.005
(.003 - .007)
.006
(.003 - .008)
.005
(.003 - .007)
U3 - .004
(.002 - .006)
.005
(.003 - .007)
.006
(.003 - .008)
.005
(.003 - .007)
Alloy Steel U1 .002
(.0015 - .004)
.003
(.002 - .004)
.003
(.002 - .005)
.004
(.003 - .005)
.003
(.002 - .005)
U2 .002
(.0015 - .004)
.004
(.002 - .005)
.004
(.003 - .006)
.005
(.003 - .007)
.004
(.003 - .006)
U3 - .004
(.002 - .005)
.004
(.003 - .006)
.005
(.003 - .007)
.004
(.003 - .006)
M Stainless Steel U1 .002
(.0015 - .004)
.0025
(.0015 - .004)
.003
(.0014 - .004)
.004
(.0016 - .005)
.003
(.0014 - .004)
U2 .002
(.0015 - .004)
.0025
(.0015 - .005)
.004
(.0016 - .006)
.004
(.0016 - .006)
.004
(.0016 - .006)
U3 - .003
(.0015 - .005)
.004
(.0016 - .006)
.004
(.0016 - .006)
.004
(.0016 - .006)
K Cast Iron Steel U1 .0028
(.002 - .004)
.0028
(.002 - .004)
.004
(.0016 - .005)
.004
(.0016 - .005)
.004
(.0016 - .005)
U2 .0028
(.0015 - .004)
.006
(.004 - .007)
.007
(.004 - .001)
.007
(.004 - .001)
.007
(.004 - .001)
U3 - .006
(.004 - .007)
.007
(.004 - .001)
.007
(.004 - .001)
.007
(.004 - .001)
Ductile Cast Iron U1 .0028
(.002 - .004)
.0028
(.002 - .004)
.004
(.0025 - .005)
.004
(.0025 - .005)
.004
(.0025 - .005)
U2 .0028
(.0015 - .004)
.004
(.003 - .005)
.006
(.003 - .008)
.007
(.003 - .008)
.006
(.003 - .008)
U3 - .004
(.003 - .005)
.006
(.003 - .008)
.007
(.003 - .008)
.006
(.003 - .008)
N Aluminum Alloy U2 - .008
(.006 - .012)
.009
(.006 - .013)
.010
(.006 - .014)
.009
(.006 - .013)
COOLANT VOLUME AND PRESSURE
COOLANT VOLUME AND PRESSURE