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China, Chinese Center Drills for Accurate Positioning and Alignment Power Pilot Power Cordless Impact Mini Hammer Electric Magnetic Drill1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Milling CutterCylindrical Milling CutterDrillPilot Drill
Supsteed Precison Tools Co., Ltd.
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Product Description Product DescriptionCenter Drills Materials Suitable for MachiningOur company specializes in high-quality center drills designed for precision machining of center holes to guide drilling operations. Crafted from premium tungsten steel and coated with advanced wear-resistant materials, these tools offer exceptional durability, sharpness, and stability. With a design optimized for accuracy and smooth cutting, our center drills are ideal for processing materials such as carbon steel, stainless steel, cast iron, and aluminum alloys. Perfect for achieving precise centering and reliable results in various machining tasks. Detailed Photos Product ParametersD0.4*0.8*D4*50LD1.2*1.8*D4*50LD1.9*2.2*D4*50LD4*5*D10*60LD3*3.5*D6*100LD0.5*1*D4*50LD1.3*1.8*D4*50LD2*2.5*D4*50LD5*6.5*D10*60LD3*3.5*D8*100LD0.6*1.2*D4*50LD1.4*2*D4*50LD2*2.5*D6*50LD6*7.5*D10*60LD4*5*D8*100LD0.8*1.5*D4*50LD1.5*2*D4*50LD2.5*3*D6*50LD1*1.5*D4*100LD4*5*D10*100LD0.9*1.5*D4*50LD1.6*2*D4*50LD3*3.5*D6*50LD1.5*2*D4*100LD5*6.5*D10*100LD1*1.5*D4*50LD1.7*2.2*D4*50LD3*3.5*D8*60LD2*2.5*D4*100LD0.7*1.4*D4*50LD1.1*1.8*D4*50LD1.8*2.2*D4*50LD4*5*D8*60LD2*2.5*D6*100L Introduction to Center DrillsCenter drills are specialized cutting tools designed to create precise conical holes in workpieces, primarily for lathe centers or other machining operations requiring accurate alignment. These versatile tools combine drilling and countersinking into a single operation, ensuring clean, burr-free holes with excellent concentricity.Ideal for metalworking, woodworking, and CNC machining, center drills are essential for:Creating center holes for lathe workStarting holes for drilling operations to prevent bit wanderingChamfering and deburring holesAligning parts in fixtures and jigs Features & Benefits of Center Drills1. High Precision & AccuracyEngineered to produce exact 60° center holes for lathe centersPrevents drill bit wandering for straighter, more accurate holes2. Dual-Function DesignCombines drilling and countersinking in one toolReduces tool changes, saving time and improving efficiency3. Durable ConstructionMade from high-speed steel (HSS) or carbide for extended tool lifeResistant to wear, heat, and deformation4. Versatile ApplicationsSuitable for metals (steel, aluminum, brass), plastics, and woodUsed in lathes, milling machines, drill presses, and CNC machines5. Multiple Size OptionsAvailable in various diameters and lengths to suit different workpiece thicknesses Types of Center Drills1. Standard Center Drills (Combined Drill & Countersink)Most common type with a pilot drill and 60° countersinkUsed for general-purpose centering in machining2. Bell-Type Center DrillsFeatures a larger 60° chamfer for deeper centeringIdeal for heavy-duty applications3. Carbide-Tipped Center DrillsExtra-hard carbide tips for machining hardened metalsLonger tool life in high-speed operations4. Heavy-Duty Center DrillsReinforced design for tough materials like stainless steel and cast iron Center Drill Sizes & SpecificationsCenter drills are classified by number sizes (e.g., #0, #1, #2, #3, #4, #5) or metric dimensions.SizeDrill Diameter (mm/in)Countersink AngleShank Diameter (mm/in)#01.0 mm (0.039")60°2.5 mm (0.098")#11.8 mm (0.071")60°3.0 mm (0.118")#22.5 mm (0.098")60°4.0 mm (0.157")#33.2 mm (0.126")60°5.0 mm (0.197")#44.5 mm (0.177")60°6.0 mm (0.236")#56.0 mm (0.236")60°8.0 mm (0.315")Custom sizes and angles available upon request. How to Use a Center DrillStep 1: Secure the WorkpieceClamp the material firmly in a vise or lathe chuck to prevent movement.Step 2: Select the Correct SpeedUse lower RPMs for harder materials (e.g., steel) and higher RPMs for softer materials (e.g., aluminum).Step 3: Align the Center DrillPosition the drill tip at the desired center point.Step 4: Apply Steady PressureFeed the drill smoothly into the workpiece without forcing it.Step 5: Clear Chips FrequentlyRetract the drill occasionally to remove metal chips and prevent clogging.Step 6: Inspect the HoleEnsure the hole is clean, burr-free, and properly centered. Maintenance & Care TipsLubrication: Use cutting fluid for metals to reduce heat and extend tool life.Storage: Keep drills in a dry, organized case to prevent damage.Sharpening: Regrind dull drills using a specialized tool grinder.Avoid Overheating: Excessive heat can weaken the drill-use proper speeds and feeds. Applications of Center Drills1. Lathe WorkCreates center holes for turning between centers2. Milling & DrillingProvides a precise starting point for drill bits3. CNC MachiningEnsures accurate part alignment in automated setups4. WoodworkingUsed for doweling and alignment in joinery5. Automotive & AerospaceCritical for high-precision component manufacturing Why Choose Our Center Drills? Premium Quality Materials - Made from high-grade HSS or carbide for durability Precision Ground Tips - Ensures clean, accurate holes every time Wide Size Range - From #0 to #5 and metric equivalents Competitive Pricing - Affordable without compromising quality Fast Shipping - Reliable delivery worldwide FAQQ1: Are you a factory or trading company? A1: We are professional precision tools manufacturer,have more than 30 years experience in this industry. Welcome to visit us!Q2: Do you produce special cutting tools?A2: Yes, we provide OEM/ODM service for customers, just send us your design drawings if you have any customized items need to be made. Q3: Can the price be reduced for large quantities?A3: Yes, bigger quantity orders are cheaper.Q4: When can I get the reply?A4: We usually reply within 12 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.Q5: What is the lead time for mass production?A5: Generally, It will take 10-15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.Q6: Is free shipping available?A6: We don't offer a free shipping service. But we can have a discount if you buy a large number of products.
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