Solid carbide drills to remove jammed taps
Solid carbide drills to remove jammed taps BlueCut coated <65 HRC Operating instruction for Carbide Drills to remove jammed Taps: The broken tap should not rise above the workpiece (it must be inside the drill hole) 1. Centering of the carbide drill by a multiple approaching on the broken tap - also on sloping faces 2. Starting the drilling process 3. In case of deep threads the chips has to be removed twice or three times 4. Chips has to be removed out of the drill hole ( for example by air pressure) 5. Any remaining chips should be taken out by a scriber point stray 6. Tapping the thread with a new tap The tool life of the carbide drill to remove jammed taps is about 3 to 5 threads Carbide drills to remove jammed taps will not be reground. Bench type or Column boring machine: Lubrication: dry or wet Revolution: 1000 - 2000 Rev./min Feed: by hand NC-machine: Lubrication: wet Revolution: 1400 - 2400 Rev./min Feed: approx. 0,03-0,06 per revolution