Sumitomo General Catalog 2025-2026

Strong MultiDrills HX Series

■ General Features Strong MultiDrill HX Type is a special drill for cast iron that combines reduced cutting resistance and improved drill strength to achieve stable and high efficiency drilling of cast iron.

Chip control + evacuation drastically improved

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■  Features and Applications ● High-Efficiency Drilling of Cast Iron

50 Thick web and a special double margin design ensure stable behavior even in high-efficiency drilling. Furthermore, RX THINNING drastically reduces cutting force and ensures more stable and efficient drilling. Enables high-efficiency drilling at speeds of over v f =39.4 IPM. (for ø10mm sizes) ● Long Tool Life DEX Coat for drills utilizes nano-coating technology that provides

DEX Coat

more than double the tool life of conventional coatings. The drill guide function is enhanced through optimization of the margin position to prevent breakage due to hole bending.

40

TiSiN

TiAlN

30

TiCN

20 0

TiN

Chipping Resistance ← → Poor Good

Low Resistance Wide chip pocket reduces thrust resistance.

Ɣ Conventional tool

Ɣ HX Type

4,000 4,500

4,000 4,500

Improves tool load

25%Less

3,000

3,000

Also suitable for small machining centres

2,000

2,000

1,000

1,000

0 -500

0 -500

2.5

3.0 3.5 4.0 4.5 5.0 30 35 40 45

2.5 3.0 3.5 4.0 4.5 5.0

Time (sec)

Time (sec)

Part Material : Grey Cast Iron, Tool: Conventional tool , MDW 1250HX5 (ø12.5mm 5D) Cutting Conditions : v c =328 SFM, f =0.024 IPR, H =1.979”, internal coolant supply (water soluble)

High Rigidity Combination of large web thickness and wide land reduces vibration.

Ɣ Conventional tool

Ɣ HX Type

x y

x y

XY Force

XY Force

800 1,000

800 1,000

Reduces cutting vibration

Conventional Tool HX Type

30%Less

400

400

0

0

-400

-400

-800 -1,000

-800 -1,000

2.5

3.0 3.5 4.0 4.5 5.0

2.5 3.0 3.5 4.0 4.5 5.0

Time (sec)

Time (sec)

Part Material : Grey Cast Iron, Tool: Conventional tool , MDW 1250HX5 (ø12.5mm 5D) Cutting Conditions : v c =328 SFM, f =0.024 IPR, H =1.979”, internal coolant supply (water soluble)

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