DrillingSolidIndexableIndexableHead TypeInsert TypeReamersBrazedOthers SEC-MultiDrills SMD-MB Type For Bridge MB Type Ideal for drilling rolled steels for welded structures for bridge (single layer and stacked) X-Type Thinning ■ Application Examples DEX Coat MB Type Good chip control Excellent fracture resistance + chip control Dedicated cutting edge design Unique wide and smooth ute shape J signi cantly improves chip control and evacuationNew J-Flute SM490YB Directs coolant to cutting vc=87m/min, f=0.29mm/rev edge even during MQL drilling Reduces peripheral edge chippingcaused byapping workpieces Centre Oil Hole Competitor's Product Elongated chips Robust Substrate and Reinforced Edge Treatment 150° Point Angle Improved surface roughness of groove greatly improves chip evacuation Highly Polished Flute Surface SM490YB vc=87m/min, f=0.29mm/rev ■ Drilling Distance Comparison Case Current Tool Tool Life Comparison (Drilling Distance) Cutting Conditions Competitor A's Competitor's 17m1Indexable HeadProduct A2.5 times the tool lifevc = 46m/minf=0.35mm/rev 1.7 to 3 times Model MB Type 42m Coolant: MQL the current tool life Competitor B's Competitor's 50m 1.7 times the tool life vc = 56m/min 2 Indexable Head Product B f=0.30mm/rev Model MB Type 87m Coolant: MQL Competitor's3Competitor C'sBrazed ModelProduct CMB Type32m3.0 times the tool lifevc = 54m/minf=0.30mm/rev95mCoolant: MQLTool Cost Competitor D's Competitor's 70m 1.7 times the tool life vc = 60m/min Major Potential Savings 4 Indexable Head Product D f=0.30mm/rev Model MB Type 120m Coolant: MQL ■ Recommended Cutting Conditions (MB Type) (vc: Cutting Speed (m/min), f: Feed Rate (mm/rev)) Work Material Rolled Steel for Welded Structures Rolled Steel for Welded Structures Rolled Steel for Welded Structures Rolled Steel for Welded StructuresSS400SM490SM520SM570 Dia. DC Cutting(mm)ConditionsMin. - Optimum - Max. Min. - Optimum - Max. Min. - Optimum - Max. Min. - Optimum - Max. ø24.5 vc 60-70-80 55-65-75 55-65-75 55-65-75 to ø26.7 f 0.20-0.30-0.40 0.20-0.30-0.40 0.20-0.25-0.35 0.20-0.25-0.35 J108