MDH-Metric Brochure 2025

Coated Carbide Drills for Steel & Cast Iron MDH Series

Carbon Steel/ Alloy Steel up to 0.28%

Carbon Steel/ Alloy Steel from 0.29%

Coat HF

- Metric Availability

Tempered Steel

Ductile Cast Iron

Cast Iron

For fitting tolerances, refer to the General Catalog [Chapter N References].

This PDF shows MDH Availability - Metric Only. Inch MDH lineup expansion is coming soon!

Fig 1

LU

PL

LCF

OAL

¢ Diameter ø6.8 to 8.6mm

Dimensions ( mm )

Roll Form Tap Size

Dia. DC

Hole Depth (L/D)

Effective Length Flute Length Overall Length

Tip PL

Shank Dia.

Cat. No.

Fig

LU

LCF

OAL

DCON

mm Inch

Inch

Inch

Inch

Inch

Inch

mm

mm 34.3 55.3 76.3 34.3 55.3 76.3 34.3 55.3 76.3 38.9 61.4 82.4 38.9 61.4 82.4 38.9 61.4 82.4 38.9 61.4 82.4 38.9 61.4 82.4 41.5 65.5 89.5 41.5 65.5 89.5 41.5 65.5 89.5 41.5 65.5 89.5 41.5 65.5 89.5 44.0 69.5 93.5 44.0 69.5 93.5 44.0 69.5 93.5 44.0 69.5 93.5 44.0 69.5 93.5 44.6 71.6 98.6

mm 89.3

mm

mm

Grade: ACH70 8.6 0.3386 8.6 0.3386 8.6 0.3386 8.5 0.3346 8.5 0.3346 8.4 0.3307 8.4 0.3307 8.4 0.3307 8.5 0.3346 7.8 0.3071 7.9 0.3110 7.9 0.3110 7.9 0.3110 8.0 0.3150 8.0 0.3150 8.0 0.3150 8.1 0.3189 8.1 0.3189 8.1 0.3189 8.2 0.3228 8.2 0.3228 8.2 0.3228 8.3 0.3268 8.3 0.3268 8.3 0.3268 6.8 0.2677 6.8 0.2677 6.8 0.2677 6.9 0.2717 6.9 0.2717 6.9 0.2717 7.0 0.2756 7.0 0.2756 7.0 0.2756 7.1 0.2795 7.1 0.2795 7.1 0.2795 7.2 0.2835 7.2 0.2835 7.2 0.2835 7.3 0.2874 7.3 0.2874 7.3 0.2874 7.4 0.2913 7.4 0.2913 7.4 0.2913 7.5 0.2953 7.5 0.2953 7.5 0.2953 7.6 0.2992 7.6 0.2992 7.6 0.2992 7.7 0.3031 7.7 0.3031 7.7 0.3031 7.8 0.3071 7.8 0.3071

3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8 3 5 8

0.9488 1.7756 2.6024 0.9449 1.7717 2.5984 0.9370 1.7638 2.5906 1.1142 2.0000 2.8268 1.1063 1.9921 2.8189 1.1024 1.9882 2.8150 1.0945 1.9803 2.8071 1.0906 1.9764 2.8031 1.1850 2.1299 3.0748 1.1811 2.1260 3.0709 1.1732 2.1181 3.0630 1.1693 2.1142 3.0591 1.1614 2.1063 3.0512 1.2559 2.2598 3.2047 1.2480 2.2520 3.1969 1.2441 2.2480 3.1929 1.2362 2.2402 3.1850 1.2323 2.2362 3.1811 1.2480 2.3110 3.3740

1.3504

3.5157

0.0512 0.0512 0.0512 0.0512 0.0512 0.0512 0.0512 0.0512 0.0512 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0551 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0591 0.0630 0.0630 0.0630

0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3150 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1 0.3937 1

 MDH0680S08H03 24.1  MDH0680S08H05 45.1  MDH0680S08H08 66.1  MDH0690S08H03 24.0  MDH0690S08H05 45.0  MDH0690S08H08 66.0  MDH0700S08H03 23.8  MDH0700S08H05 44.8  MDH0700S08H08 65.8  MDH0710S08H03 28.3  MDH0710S08H05 50.8  MDH0710S08H08 71.8  MDH0720S08H03 28.1  MDH0720S08H05 50.6  MDH0720S08H08 71.6  MDH0730S08H03 28.0  MDH0730S08H05 50.5  MDH0730S08H08 71.5  MDH0740S08H03 27.8  MDH0740S08H05 50.3  MDH0740S08H08 71.3  MDH0750S08H03 27.7  MDH0750S08H05 50.2  MDH0750S08H08 71.2  MDH0760S08H03 30.1  MDH0760S08H05 54.1  MDH0760S08H08 78.1  MDH0770S08H03 30.0  MDH0770S08H05 54.0  MDH0770S08H08 78.0  MDH0780S08H03 29.8  MDH0780S08H05 53.8  MDH0780S08H08 77.8  MDH0790S08H03 29.7  MDH0790S08H05 53.7  MDH0790S08H08 77.7  MDH0800S08H03 29.5  MDH0800S08H05 53.5  MDH0800S08H08 77.5  MDH0810S10H03 31.9  MDH0810S10H05 57.4  MDH0810S10H08 81.4  MDH0820S10H03 31.7  MDH0820S10H05 57.2  MDH0820S10H08 81.2  MDH0830S10H03 31.6  MDH0830S10H05 57.1  MDH0830S10H08 81.1  MDH0840S10H03 31.4  MDH0840S10H05 56.9  MDH0840S10H08 80.9  MDH0850S10H03 31.3  MDH0850S10H05 56.8  MDH0850S10H08 80.8  MDH0860S10H03 31.7  MDH0860S10H05 58.7  MDH0860S10H08 85.7  : Worldwide Warehouse Item

1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.6 1.6 1.6

8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0

2.1772 110.3 4.3425 3.0039 131.3 5.1693

1.3504

3.5157

89.3

2.1772 110.3 4.3425 3.0039 131.3 5.1693

1.3504

3.5157

89.3

2.1772 110.3 4.3425 3.0039 131.3 5.1693

1.5315

3.7559

95.4

2.4173 119.4 4.7008 3.2441 143.4 5.6457

1.5315

3.7559

95.4

2.4173 119.4 4.7008 3.2441 143.4 5.6457

1.5315

3.7559

95.4

2.4173 119.4 4.7008 3.2441 143.4 5.6457

5/16-28

1.5315

3.7559

95.4

2.4173 119.4 4.7008 3.2441 143.4 5.6457

M8x1.25

1.5315

3.7559

95.4

2.4173 119.4 4.7008 3.2441 143.4 5.6457

1.6339

3.7598

95.5

2.5787 119.5 4.7047 3.5236 143.5 5.6496

1.6339

3.7598

95.5

2.5787 119.5 4.7047 3.5236 143.5 5.6496

1.6339

3.7598

95.5

2.5787 119.5 4.7047 3.5236 143.5 5.6496

1.6339

3.7598

95.5

2.5787 119.5 4.7047 3.5236 143.5 5.6496

1.6339

3.7598

95.5

2.5787 119.5 4.7047 3.5236 143.5 5.6496 1.7323 101.5 3.9961 2.7362 128.5 5.0591 3.6811 155.5 6.1220 1.7323 101.5 3.9961 2.7362 128.5 5.0591 3.6811 155.5 6.1220 1.7323 101.5 3.9961 2.7362 128.5 5.0591 3.6811 155.5 6.1220 1.7323 101.5 3.9961 2.7362 128.5 5.0591 3.6811 155.5 6.1220 1.7323 101.5 3.9961 2.7362 128.5 5.0591 3.6811 155.5 6.1220 1.7559 101.6 4.0000 2.8189 128.6 5.0630 3.8819 155.6 6.1260

10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0

M9x.75

10

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