Center Drill 10pcs A1 A2 A3 A4 A5 HSS Center Drill Bit Combined Drills 60 Degree Countersinks Angle Metal HSS-TIN(HSS TiN Coated,A1.5)

Center drillinstructions:1users mustaccording topass machiningparts andstraighthole sizereasonable selection ofcenterdrillingmodel.The 2workpiecehardnessshould be the most170-200HB.The 3toolbefore use,must be washedantirust oil,so as not toaffect the cutting performanceof chipstickover the edge.4 isa workpiece surface processingshould be straight,there shall be noblistersor hardpoints,so as to avoidcutterdamage.5the center drillbefore drillingshall reachthe desired position accuracy.6cutting7cutting fluidprocessingobject selection:according todifferent cutting fluid,coolingshould be fully.Note: 8appeared in theprocessing ofthe abnormal situation shouldimmediately stop,find out the reasonbehind theprocessing;pay attention towearedgetimely repair;toolto cleanoilafter use,the safekeeping ofoh.Origin : ChinaModel Number : A1-A6DIY Supplies : MetalworkingMaterial : High Speed SteelType : Center Drill BitUse : Metal DrillingLength : L

• 【Material】: The center drill is crafted from premium materials (such as high-speed steel), ensuring robust durability while enhancing wear resistance and enabling efficient chip evacuation.
• 【Convenience】: Easy to use and install, allowing for quick drill bit replacement with one hand.
• 【Precision Machining】: Center drills and locating drills are used to create tapered holes on lathes, providing a starting point for standard twist drills. Their design prevents drill bit deflection.
• 【Chip Removal】: Wide spiral flutes enhance chip evacuation and heat dissipation, minimizing breakage risks from poor chip clearance. Use slightly higher speeds; if speeds are too low, the blade may feel dull.
• 【Versatile Applications】: Center drills work with lathes to drill holes in mold steel, cast iron, aluminum, carbon steel, wood, threaded dies, and other hard materials, enhancing drilling efficiency.