Miskamro

9/16 Inch Cobalt Drill Bit for Metal - Industrial Grade M35 Cobalt Titanium Aluminum Nitride, Reduced Shank 3-Flat 1/2" Shank, 135° Split Point, Total Length 6", for Stainless Steel & Alloy Steel

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R 1,211
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Description

  • HRC 72 Hardness – M35 with 5% Cobalt: Made from M35 high-speed steel containing 5% cobalt, fully heat-treated to achieve HRC 72 – provides superior wear resistance and maintains a sharp cutting edge through repeated use
  • COBALT-RICH CUTTING EDGE: M35 metallurgy with 5% cobalt content, fully ground on automatic machines. Harder than standard HSS, so it powers through alloy steels without dulling
  • TIAlN COATING = COOLER RUNNING: Reduces coefficient of friction and shields the base metal from heat. Prevents blue-burning and edge breakdown during extended drilling cycles
  • PRECISION GROWN FLUTES: Fully polished flutes eject chips faster and reduce binding. Cleaner holes, less effort, and better surface finish on exits
  • 135° Split Point & 3-Flat Shank: Self-centering split point eliminates walking; 3-flat shank prevents spin-out even under high torque – compatible with drill presses, hand drills, and magnetic drills
  • The drill bits use a dual-layer design for security and durability. The outer clamshell is ultrasonically welded, making tampering evident and ensuring factory-fresh arrival. Inside, a custom storage box prevents metal-on-metal contact, protecting bit edges and coatings. The box also serves as a permanent organizer, keeping bits separated by size. This system guarantees product integrity at purchase and offers a reusable storage solution for the bits' lifetime
Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.