Flat Bottom Drills MDF-H (Internal Coolant Supply)
Carbon Steel/ Alloy Steel up to 0.28%
Carbon Steel/ Alloy Steel from 0.29%
Hardened Steel up to 45HRC
Stainless Steel
Tempered Steel
Ductile Cast Iron
Aluminum Alloy
Cast Iron
Coat
*Refer to N74 for the tolerance of h6 and h8
Fig. 1 (3D single margin)
Fig. 2 (5D double margin)
LU
LU
LCF
LCF
LUX
LUX
OAL
OAL
Diameter ø0.4528" ( 11.5mm ) to ø0.6299” ( 16.0mm )
Dimensions ( inch/ mm )
Diameter DC
Effective Length LU
Overall Length OAL
Shank Diameter DCON
Flute Length LCF
Neck Length LUX
Hole Depth (L/D)
Cut Tap Size
Roll Form Tap Size
Cat. No.
Fig
J
inch
mm Fraction
inch
inch
inch
inch
inch
mm
mm
mm
mm
mm
3 MDF1150H3D 1.8110 46.00 2.0394 51.80 2.1575 54.80 4.8031 122.00 5 MDF1150H5D 2.7165 69.00 3.0354 77.10 3.1535 80.10 6.2205 158.00 3 MDF1160H3D 1.8268 46.40 2.0551 52.20 2.1732 55.20 4.8031 122.00 5 MDF1160H5D 2.7402 69.60 3.0591 77.70 3.1772 80.70 6.2205 158.00 3 MDF1170H3D 1.8425 46.80 2.0748 52.70 2.1929 55.70 4.8031 122.00 3 MDF1170H5D 2.7638 70.20 3.0866 78.40 3.2047 81.40 6.2205 158.00 5 MDF1180H3D 1.8583 47.20 2.0906 53.10 2.2087 56.10 4.8031 122.00 3 MDF1180H5D 2.7874 70.80 3.1142 79.10 3.2323 82.10 6.2205 158.00 5 MDF1190H3D 1.8740 47.60 2.1102 53.60 2.2283 56.60 4.8031 122.00 3 MDF1190H5D 2.8110 71.40 3.1378 79.70 3.2559 82.70 6.2205 158.00 3 MDF1200H3D 1.8898 48.00 2.1260 54.00 2.2441 57.00 4.8031 122.00 5 MDF1200H5D 2.8346 72.00 3.1654 80.40 3.2835 83.40 6.2205 158.00 3 MDF1250H3D 1.9685 50.00 2.2165 56.30 2.3346 59.30 5.0394 128.00 5 MDF1250H5D 2.9528 75.00 3.2992 83.80 3.4173 86.80 6.5748 167.00 3 MDF1300H3D 2.0472 52.00 2.3031 58.50 2.4213 61.50 5.0394 128.00 6 MDF1300H5D 3.0709 78.00 3.4291 87.10 3.5472 90.10 6.5748 167.00 3 MDF1350H3D 2.1260 54.00 2.3937 60.80 2.5118 63.80 5.2756 134.00 5 MDF1350H5D 3.1890 81.00 3.5630 90.50 3.6811 93.50 6.9291 176.00 3 MDF1400H3D 2.2047 56.00 2.4803 63.00 2.5984 66.00 5.2756 134.00 5 MDF1400H5D 3.3071 84.00 3.6929 93.80 3.8110 96.80 6.9291 176.00 3 MDF1450H3D 2.2835 58.00 2.5709 65.30 2.6890 68.30 5.5118 140.00 5 MDF1450H5D 3.4252 87.00 3.8268 97.20 3.9449 100.20 7.2835 185.00 3 MDF1500H3D 2.3622 60.00 2.6575 67.50 2.7756 70.50 5.5118 140.00 5 MDF1500H5D 3.5433 90.00 3.9567 100.50 4.0748 103.50 7.2835 185.00 3 MDF1550H3D 2.4409 62.00 2.7480 69.80 2.8661 72.80 5.7480 146.00 5 MDF1550H5D 3.6614 93.00 4.0906 103.90 4.2087 106.90 7.6378 194.00 3 MDF1600H3D 2.5197 64.00 2.8346 72.00 2.9528 75.00 5.7480 146.00 5 MDF1600H5D 3.7795 96.00 4.2205 107.20 4.3386 110.20 7.6378 194.00
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
0.4528 11.50
1/2-20 M12x1.25
0.4724 12.00
0.4567 11.60
1/2-20 M12x1
0.4724 12.00
0.4606 11.70
0.4724 12.00
0.4646 11.80
0.4724 12.00
1/2-13
0.4685 11.90
0.4724 12.00
l MDF04688H3D 1.8750 47.63 2.1094 53.58 2.2275 56.58 4.803 122.00 0.4724 12.00 1
0.4688 11.91 15/32
1/2-13 3
0.4724 12.00
0.4724 12.00
9/16-12
0.4921 12.50
0.5118 13.00
3 MDF05000H3D 2.0000 50.80 2.2500 57.15 2.3681 60.15 5.039 127.99 0.5118 13.00 1
0.5000 12.70 1/2 M14x1.5
0.5118 13.00
0.5118 13.00
9/16-18
0.5315 13.50
0.5512 14.00
0.5512 14.00
0.5512 14.00
3 l MDF05625H3D 2.2500 57.15 2.5313 64.29 2.6494 67.29 5.512 140.00 0.5906 15.00 1
0.5625 14.29 9/16 M16x2
0.5709 14.50
0.5906 15.00
0.5906 15.00
5/8-11
0.5906 15.00
0.6102 15.50
0.6299 16.00
0.6299 16.00
0.6299 16.00
l : USA Stocked Item : Worldwide Warehouse Item
Grade: ACF75
*A prepared hole with the same diameter or centring hole with a larger diameter than the tool is needed for drilling with the 5D tool.
Recommended Cutting Conditions for 3D 1. The recommended hole depth is 3 x DC. The depth is measured from the highest point of the hole when drilling in inclined surfaces. 2. The recommended cutting conditions are those for drilling in flat horizontal surfaces. 3. Adjust the feed rate according to the inclination angle when drilling in an inclined surface. 4. Set the feed rate at 70% or lower when the inclination angle is 30° or less.
5. Set the feed rate at 50% or lower when the inclination angle is larger than 30°. 6. This product is a drilling tool. Do not use it for traverse cutting or helical milling. 7. A prepared hole with the same diameter is recommended for machining of stainless steel.
( v c : Cutting Speed (SFM), f : Feed Rate (IPR))
Dia. DC (Inch/ mm )
Cutting Conditions
Mild Steel/General Steel (up to 250HB)
Alloy Steel (up to 300HB)
Hardened Steel (up to HRC50)
Stainless Steel (up to 200HB)
Gray Cast Iron FC250
Ductile Cast Iron FCD450
Aluminum Alloy 300 - 500
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
ø4
vc
ø.1575
.0024 - .0039
.0020 - .0039
.0004 - .0012
.0004 - .0012
.0024 - .0039
.0016 - .0031
.0024 - .0039
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
230 - 300
300 - 500
ø6
vc
ø.2362
.0020 - .0059
.0020 - .0059
.0016 - .0031
.0012 - .0020
.0020 - .0059
.0024 - .0047
.0020 - .0059
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
230 - 300
300 - 500
ø8
vc
ø.3150
.0039 - .0079
.0039 - .0079
.0024 - .0039
.0016 - .0031
.0039 - .0079
.0039 - .0059
.0039 - .0079
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
230 - 300
300 - 500
ø10
vc
ø.3937
.0047 - .0087
.0047 - .0087
.0031 - .0047
.0024 - .0039
.0047 - .0087
.0047 - .0071
.0059 - 0098
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
230 - 300
300 - 500
ø12
vc
ø.4724
.0059 - 0098
.0059 - 0098
.0047 - .0071
.0031 - .0047
.0059 - 0098
.0059 - .0079
.0079 - .0118
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
230 - 300
300 - 500
ø16
vc
ø.6299
.0059 - 0098
.0059 - 0098
.0047 - .0071
.0039 - .0079
.0067 - .0106
.0059 - 0098
.0098 - .0157
f
Recommended Cutting Conditions for 5D 1. A prepared hole with the same diameter is needed for machining with this tool. 2. A prepared hole with the same diameter is recommended for the cutting conditions.
Min. - Max.
3. The recommended hole depth is 5 x DC. The depth is measured from the highest point of the hole when drilling in inclined surfaces. 4. This product is a drilling tool. Do not use it for traverse cutting or helical milling.
( v c : Cutting Speed (SFM), f : Feed Rate (IPR))
Dia. DC (mm)
Cutting Conditions
Mild Steel/General Steel (up to 250HB)
Alloy Steel (up to 300HB)
Hardened Steel (up to HRC50)
Stainless Steel (up to 200HB)
Gray Cast Iron FC250
Ductile Cast Iron FCD450
Aluminum Alloy 300 - 500
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
ø4
v c
ø.1575
.0024 - .0039
.0020 - .0039
.0004 - .0012
.0004 - .0012
.0024 - .0039
.0016 - .0031
.0024 - .0039
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
300 - 500
ø6
v c
ø.2362
.0020 - .0059
.0020 - .0059
.0016 - .0031
.0012 - .0020
.0020 - .0059
.0024 - .0047
.0020 - .0059
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
300 - 500
ø8
v c
ø.3150
.0039 - .0079
.0039 - .0079
.0024 - .0039
.0016 - .0031
.0039 - .0079
.0039 - .0059
.0039 - .0079
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
300 - 500
ø10
v c
ø.3937
.0059 - 0098
.0059 - 0098
.0031 - .0047
.0024 - .0039
.0059 - 0098
.0047 - .0071
.0059 - 0098
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
300 - 500
ø12
v c
ø.4724
.0079 - .0118
.0079 - .0118
.0047 - .0071
.0031 - .0047
.0067 - .0106
.0059 - 0098
.0079 - .0118
f
230 - 330
200 - 300
100 - 130
80 - 115
230 - 330
215 - 280
300 - 500
ø16
v c
J57
ø.6299
.0079 - .0118
.0079 - .0118
.0055 - .0079
.0039 - .0079
.0079 - .0118
.0079 - .0118
.0098 - .0138
f
Min. - Max.
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