Dormer PFX A901 3.8mm AICrN Coated Cobalt Jobber Length Parabolic Flute Drill 130 Degree Notched Point 0047903

Up To Six Times The Diameter Of The Drill. The Shank Diameter Is The Same As The Drill Size. Both Have A Type W Flute Form, With A Fast Helix Angle Of 35 To 45 Degrees, And Are Most Suitable For Drilling Into Steel, Stainless Steel, Titanium, Nickel, And Alloyed Aluminum. This Design Allows For Single-Pass Drilling, Which Helps Eliminate The Need For Pecking, Thus Offering Improved Efficiency And Increased Productivity. The Composition Of HSS And Cobalt Offers A Combination Of Toughness And Hardness Needed For Deep Hole Drilling. The Parabolic Design, Combined With A Parallel Thinned Web, Allows For Smooth And Efficient Chip Removal. With Proper Cutting Conditions And A Rigid Machine Setup, Holes To H10 Tolerance Can Consistently Be Achieved. Aluminum Chromium Nitride, AlCrN, (A901) Also Known As Smooth-Flow Coating, Provides Hardness And Better Resistance To Chemical Breakdown In High-Heat Applications Than TiAlN, TiCN, And Tin Coatings. This Coating Is Suitable For Use On Ductile Cast Iron And Carbon Steel.