drilling holes in angle iron
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The best drill bit to use for cast iron is a cobalt bit with a 135-degree point angle. The angle is sharper than that on a conventional bit, making drilling faster and more accurate. The angle is sharper than that on a conventional bit, making drilling faster and more accurate.
Drilling through angle iron is done oin the same way as drilling through other shapes of mild steel.
Drill America 1-3/4 in. High Speed Steel Twist Black Oxide Reduced Shank Drill Bit with 3/4 in. Shank
If youll be drilling a lot of holes, or need to drill through hard, abrasive metals like stainless steel or cast iron, spend a couple bucks more for black oxide or a cobalt steel drill bit for metal. These bits will bore more holes before becoming dull.
What you are seeing is 1) tapping a target hole with a screw and hammer 2) drilling a hole using a 1/8" metal drill bit 3) using a #10 countersink bit to bore out a space for the screw head to fit , drilling holes in angle iron
How to Drill and Tap Cast Iron Step 1. Find the size of the fastener you need to thread into the cast iron on a drill, drilling holes in angle iron Step 2. Secure the drill bit from the set into the chuck of a variable-speed drill motor. Step 3. Drill the hole into the cast iron by pumping the trigger of the drill motor to , drilling holes in angle iron
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