MultiDrill Series MDM Type (Internal Coolant Supply)
Recommended Cutting Conditions
1. The recommended cutting conditions below are for cases where an internal supply of a water soluble coolant is used. 2. If using non-water soluble coolant, reduce the cutting speed by 20-30% and ensure that sufficient coolant is supplied. 3. When mounting the drill in the collet, make sure that runout around the cutting edge is no greater than 0.02mm . 4. Make sure the flute does not enter the collet. 5. If the part entering the workpiece is abnormally shaped ( tilted, interrupted etc.), reduce the feed rate to about half when inserting the drill in the workpiece.
*If stable machining is still not possible, pre-machining of the flat surface with the MDF Flat MultiDrill is recommended. 6. When performing intermittent through drilling, reduce the feed rate to about half the feed rate used prior to this process.
Precipitation Hardening Stainless Steel (17-4 PH & 15-5 PH)
Duplex Stainless Steel (244, 2304, & 2507)
Ni-Based Heat-resisiting Alloy (Inconel 718)
Dia. DC (mm)
Titanium Alloy (y-TiAl, & Ti-6Al-4V)
Ferritic/Martensitic Stainless Steel
Austenitic Stainless Steel
Material
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≤ 200HB
> 200HB
≤ 200HB
> 200HB
<340 HB
<310 HB
260 to 340 HB 38 to 45 HRc
ø3 30 - 65 - 100 IPR .0023 - .0035 - .0047.0023 - .0035 - .0047.0023 - .0035 - .0047.0023 - .0035 - .0047.0023 - .0035 - .0047.0023 - .0035 - .0047.0023 - .0035 - .0047 .002 - .0025 - .0031 ø4 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0031 - .0048 - .0066.0031 - .0048 - .0066.0031 - .0048 - .0066.0031 - .0048 - .0066.0031 - .0048 - .0066.0031 - .0048 - .0066.0031 - .0048 - .0066 .0023 - .0031 - .004 ø5 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0031 - .0054 - .0078.0031 - .0054 - .0078.0031 - .0054 - .0078.0031 - .0054 - .0078.0031 - .0054 - .0078.0031 - .0054 - .0078.0031 - .0054 - .0078.0027 - .0037 - .0047 ø6 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0039 - .0058 - .0078.0039 - .0058 - .0078.0039 - .0058 - .0078.0039 - .0058 - .0078.0039 - .0058 - .0078.0039 - .0058 - .0078.0039 - .0058 - .0078.0031 - .0045 - .0059 ø7 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0047 - .0068 - .009 .0047 - .0068 - .009 .0047 - .0068 - .009 .0047 - .0068 - .009 .0047 - .0068 - .009 .0047 - .0068 - .009 .0047 - .0068 - .009 .0031 - .0045 - .0059 ø8 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0047 - .0072 - .0098.0047 - .0072 - .0098.0047 - .0072 - .0098.0047 - .0072 - .0098.0047 - .0072 - .0098.0047 - .0072 - .0098.0047 - .0072 - .0098 .0039 - .0054- .007 ø9 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0066 - .0082 - .0098.0066 - .0082 - .0098.0066 - .0082 - .0098.0066 - .0082 - .0098.0066 - .0082 - .0098.0066 - .0082 - .0098.0066 - .0082 - .0098 .0047 - .0058 - .007 ø10 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .007 - .009 - .011 .007 - .009 - .011 .007 - .009 - .011 .007 - .009 - .011 .007 - .009 - .011 .007 - .009 - .011 .007 - .009 - .011 .0047 - .0062 - .0078 ø11 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0059 - .0068 - .0078 ø12 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0059 - .0068 - .0078 ø13 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0059 - .0068 - .0078 ø14 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0059 - .0068 - .0078 ø15 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0059 - .0068 - .0078 ø16 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170 30 - 65 - 100 IPR .0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0078 - .0098 - .0118.0059 - .0068 - .0078 SFM 200 - 265 - 330 130 - 198 - 265 200 - 265 - 330 130 - 198 - 265 130 - 165 - 200 130 - 165 - 200 100 - 135 - 170
Ferritic/Martensitic Stainless Steel
Austenitic Stainless Steel
Work Material
≤ 200HB
> 200HB
≤ 200HB
> 200HB
Cutting Speed Dia. DC (mm)
60 to 100m/min
40 to 80m/min
60 to 100m/min
40 to 80m/min
Spindle Speed (min -1 ) Feed Rate (mm/rev) Spindle Speed (min -1 ) Feed Rate (mm/rev) Spindle Speed (min -1 ) Feed Rate (mm/rev) Spindle Speed (min -1 ) Feed Rate (mm/rev) ø3 8,500 0.06 to 0.12 6,400 0.06 to 0.12 8,500 0.06 to 0.12 6,400 0.06 to 0.12 ø4 6,400 0.08 to 0.17 4,800 0.08 to 0.17 6,400 0.08 to 0.17 4,800 0.08 to 0.17 ø5 5,100 0.08 to 0.20 3,900 0.08 to 0.20 5,100 0.08 to 0.20 3,900 0.08 to 0.20 ø6 4,300 0.10 to 0.20 3,200 0.10 to 0.20 4,300 0.10 to 0.20 3,200 0.10 to 0.20 ø7 3,700 0.12 to 0.23 2,800 0.12 to 0.23 3,700 0.12 to 0.23 2,800 0.12 to 0.23 ø8 3,200 0.15 to 0.25 2,400 0.15 to 0.25 3,200 0.15 to 0.25 2,400 0.15 to 0.25 ø9 2,900 0.17 to 0.25 2,200 0.17 to 0.25 2,900 0.17 to 0.25 2,200 0.17 to 0.25 ø10 2,600 0.18 to 0.28 2,000 0.18 to 0.28 2,600 0.18 to 0.28 2,000 0.18 to 0.28 ø11 2,400 0.20 to 0.30 1,800 0.20 to 0.30 2,400 0.20 to 0.30 1,800 0.20 to 0.30 ø12 2,200 0.20 to 0.30 1,600 0.20 to 0.30 2,200 0.20 to 0.30 1,600 0.20 to 0.30 ø13 2,000 0.20 to 0.30 1,500 0.20 to 0.30 2,000 0.20 to 0.30 1,500 0.20 to 0.30 ø14 1,900 0.20 to 0.30 1,400 0.20 to 0.30 1,900 0.20 to 0.30 1,400 0.20 to 0.30 ø15 1,700 0.20 to 0.30 1,300 0.20 to 0.30 1,700 0.20 to 0.30 1,300 0.20 to 0.30 ø16 1,600 0.20 to 0.30 1,200 0.20 to 0.30 1,600 0.20 to 0.30 1,200 0.20 to 0.30
Stainless steel with deposition hardened structure ≤ 340HB
Ni-based Heat-resistant Alloy (Inconel 718) 38 to 45HRC
Duplex stainless steel ≤ 310HB
Titanium Alloy 260HB to 340HB
Work Material
Cutting Speed Dia. DC (mm)
40 to 60m/min
40 to 60m/min
30 to 50m/min
10 to 30m/min
Spindle Speed (min -1 ) Feed Rate (mm/rev) Spindle Speed (min -1 ) Feed Rate (mm/rev) Spindle Speed (min -1 ) Feed Rate (mm/rev) Spindle Speed (min -1 ) Feed Rate (mm/rev) ø3 5,300 0.06 to 0.12 5,300 0.06 to 0.12 4,200 0.06 to 0.12 2,100 0.05 to 0.08 ø4 4,000 0.08 to 0.17 4,000 0.08 to 0.17 3,200 0.08 to 0.17 1,600 0.06 to 0.10 ø5 3,200 0.08 to 0.20 3,200 0.08 to 0.20 2,500 0.08 to 0.20 1,300 0.07 to 0.12 ø6 2,700 0.10 to 0.20 2,700 0.10 to 0.20 2,100 0.10 to 0.20 1,000 0.08 to 0.15 ø7 2,300 0.12 to 0.23 2,300 0.12 to 0.23 1,800 0.12 to 0.23 900 0.08 to 0.15 ø8 2,000 0.15 to 0.25 2,000 0.15 to 0.25 1,600 0.15 to 0.25 800 0.10 to 0.18 ø9 1,800 0.17 to 0.25 1,800 0.17 to 0.25 1,400 0.17 to 0.25 700 0.12 to 0.18 ø10 1,600 0.18 to 0.28 1,600 0.18 to 0.28 1,300 0.18 to 0.28 600 0.12 to 0.18 ø11 1,400 0.20 to 0.30 1,400 0.20 to 0.30 1,200 0.20 to 0.30 600 0.15 to 0.20 ø12 1,300 0.20 to 0.30 1,300 0.20 to 0.30 1,100 0.20 to 0.30 500 0.15 to 0.20 ø13 1,200 0.20 to 0.30 1,200 0.20 to 0.30 1,000 0.20 to 0.30 500 0.15 to 0.20 ø14 1,100 0.20 to 0.30 1,100 0.20 to 0.30 900 0.20 to 0.30 450 0.15 to 0.20 ø15 1,050 0.20 to 0.30 1,050 0.20 to 0.30 850 0.20 to 0.30 400 0.15 to 0.20 ø16 1,000 0.20 to 0.30 1,000 0.20 to 0.30 800 0.20 to 0.30 400 0.15 to 0.20
J43
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