DrillingSolidIndexableIndexableHead TypeInsert TypeReamersBrazedOthers Cutting Force (N)Cutting Force (N) Coating Hardness (GPa) Strong MultiDrills HX Type ■ 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 J ■ Features and Applications ● High-Efficiency Drilling of Cast Iron Thick web and special double margin design ensure stable behaviour 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 vf=1,000mm/min. (for ø10mm sizes) ● Long Tool Life DEX Coat DEX Coat for drills utilises nano-coating technology that provides 50 more than double the tool life of conventional coatings. The drill guide function is enhanced through optimisation of the margin position to prevent breakage 40 TiSiN due to hole bending. 30 TiAlN TiCN 20 TiN 0 Poor ← Chipping Resistance → Good Low Resistance Wide chip pocket reduces thrust resistance. ● Conventional tool ● HX Type Improves tool load 4,5004,000 4,5004,000 25% Less 3,000 3,000 Also suitable for small 2,000 2,000 machining centres 1,000 1,000 0 0 2.5 3.0 3.5 4.0 4.5 5.0 2.5 3.0 3.5 4.0 4.5 5.0 -500 -500 Time (sec) Time (sec) Work Material : FC250, Tool: Conventional tool, MDW 1250HX5 (ø12.5mm 5D) Cutting Conditions : vc=100m/min, f=0.60mm/rev, H=50mm, internal coolant supply (water soluble) High Rigidity Combination of large web thickness and wide ● Conventional tool ● HX Type land reduces vibration. 1,000Conventional ToolReduces cutting vibration800XY Forcexy 1,000800 XY Force xy HX Type 30% Less 400 400 0 0 -400 -400 -800 -800 -1,000 2.5 3.0 3.5 4.0 4.5 5.0 -1,000 2.5 3.0 3.5 4.0 4.5 5.0 Time (sec) Time (sec) Work Material : FC250, Tool: Conventional tool, MDW 1250HX5 (ø12.5mm 5D) Cutting Conditions : vc=100m/min, f=0.60mm/rev, H=50mm, internal coolant supply (water soluble) J60