Dormer ADX A520 4mm High Performance TiN High Speed Steel Screw Machine Length Drill 130 Degree Notched Point 0039007

The Dormer A520 Stub Length, ADX Point, Is A Round Shank Drill Bit Made Of High Speed Steel With A Tin Physical Vapor Deposition (PVD) Coating. ADX Point Geometry Provides Efficient Cutting Action And Positional Accuracy. Designed For High Productivity, Excellent Swarf (Chips, Debris Or Waste Resulting From Drilling) Removal, And Accurate Holes To H9 Tolerance. Best Usage In Numerical Control (NC) Or Computer Numerical Control (CNC) Applications Where High Productivity And Accurate Holes Are A Must. It Is Suitable For Drilling To a Depth Up To Two-And-A-Half Times The Diameter Of The Drill. The Shank Diameter Is The Same As The Drill Size. It Was Designed For Drilling Holes Into A Wide Variety Of Substances With Best Performance In Steel, Stainless Steel, Cast Iron, Titanium, Copper, Aluminum Magnesium, and Synthetic Materials. The A520 Series Has a Faster Than Normal Helix Angle For Efficient Swarf Evacuation. The 130-Degree, Notch-Thinned Point With Convex Cutting Edge Offers Easier Workplace Penetration, Improved Hole Size, and Accurate Centering When Starting The Hole. The Helix Has Been Optimized Across The Entire Drill Bit Diameter For Added Stiffness. The Tin PVD Coating Resists Flank and Crater Wear, Has Low Friction, and Increased Cutting Speeds. HSS ADX Drills Offer Several Times The Productivity Of Uncoated Drills.