MDH-Metric Brochure 2025

Coated Carbide Drills for Steel & Cast Iron MDH Series

¢ Application Examples

4320 Alloy Steel Tool Holder

Sumitomo Conventional Tool

Steel 52100 Tooling Component

Sumitomo Conventional Tool

Q

Q

Tool

Tool

MDH1030S12H08

MDH0950S10H05

Lathe

Lathe (Hole drilling depth: 2.000” )

Diameter ( mm )

Diameter ( mm )

ø10.3

ø10.3

ø9.5

ø9.5

L/D

L/D

8

8

5

5

vc (SFM)

vc (SFM)

265

265

330

300

f (IPR)

f (IPR)

.0177

.0138

.0118

.0059

Wet (Water-soluble, Internal Coolant Supply)

Wet (Water-soluble, Internal Coolant Supply)

Wet (Oil-based, Internal Coolant Supply)

Wet (Oil-based, Internal Coolant Supply)

Coolant

Coolant

0 1,000 2,000 3,000 4,000

2,500

2,000

1,500

Approx. 1.3 times the efficiency and 1.35 times the tool life of conventional tools

Twice the efficiency and at least twice the tool life of conventional tools

1,000

Results

Results

500

0

MDH series Conventional Tool

MDH series Conventional Tool

Steel 4135 Ring Gear Vertical Machining Center

Sumitomo Conventional Tool

Steel 52100 Automotive Component

Sumitomo Conventional Tool

Q

Q

Tool

Tool

MDH1350S14H05

MDH0470S06H05

Multi-spindle Lathe

Diameter ( mm )

Diameter ( mm )

ø13.5

ø13.5

ø4.7

ø4.7

L/D

L/D

5

5

5

5

vc (SFM)

vc (SFM)

300

300

105

105

f (IPR)

f (IPR)

.0157

.0079

.0118

.0047

Wet (Internal Coolant Supply)

Wet (Internal Coolant Supply)

Wet (Internal Coolant Supply)

Wet (Internal Coolant Supply)

Coolant

Coolant

Twice the efficiency and tool life of conventional tools

2.5 times the efficiency of conventional tools

Results

Results

After drilling 240 holes

Cast Iron FC200 Housing

Sumitomo Conventional Tool

Gray Cast Iron Housing Vertical Machining Center

Sumitomo Conventional Tool

Q

Tool

Tool

Horizontal Machining Center BT50

MDH1110S12H08 HSS Drills

MDH0870S10H05

Diameter ( mm )

Diameter ( mm )

ø11.1

ø11.1

ø8.7

ø8.7

L/D

L/D

8

8

5

5

Q Q

vc (SFM)

vc (SFM)

265

280

280

f (IPR)

f (IPR)

.0197

.0157

.0079

Wet (Water-soluble, Internal Coolant Supply)

Wet (Water-soluble, Internal Coolant Supply)

Wet (Water-soluble, Internal Coolant Supply)

Wet (Water-soluble, Internal Coolant Supply)

600

Coolant

Coolant

400

High feed drilling is possible on a horizontal machining center, with 8D specifications (Conventional 11.1mm drill used for pilot hole)

Twice the efficiency and 2.5 times the tool life of competitors’ products

200

Results

Results

0

After drilling for 150 minutes

MDH series Conventional Tool

Gray Cast Iron Industrial Machine Component

Sumitomo Conventional Tool

Q

Tool

Horizontal Machining Center BT50

MDH0510S06H05

Diameter ( mm )

ø5.1

ø5.1

L/D

5

5

vc (SFM)

230

230

f (IPR)

.0118

.0079

Wet (Water-soluble, External Coolant Supply)

Wet (Water-soluble, External Coolant Supply)

Coolant

1.5 times the efficiency of conventional tools with the same tool life

Results

After drilling 5,100 holes

MDH P roduct P age

Sumitomo Electric Carbide, Inc. Headquarters

Sumitomo Carbide Canada, Inc. 150 Research Lane Unit #210 Guelph, Ontario N1G 4T2 Phone: (519) 265-6050 Phone: (844) 211-6050

Michigan Branch 26800 Meadowbrook Suite 120 Novi, MI 48377

Phone: (847) 635-0044 Fax: (847) 635-9335 www.sumicarbide.com

1001 Business Center Drive Mount Prospect, IL 60056

Sumitomo Electric Tool Engineering Center 5637 S. Westridge Drive New Berlin, WI 53151

Indiana Branch 595 S. Emerson Avenue Suite 100 Greenwood, IN 46143

CAT.MDHBROCHURE.8/25

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