6221ZZ DEEP GROOVE RADIAL BALL BRG 100 Grit • 135Â degree split point

• 135Â degree split point for fast penetration and accurate starting without a center punch

This is especially important when using abrasive pads or grinding attachments during operations such as cleaning gasket surfaces or cylinder head porting

high-speed steel drill performs well in a wide variety of drilling applications

The back screw feature makes it easier to remove the core bit from the application in case the bit gets jammed or the core is stuck in the barrel and to add extension barrels to expand the depth of drilling

having good hardness

6221ZZ DEEP GROOVE RADIAL BALL BRG 100 Grit • 135Â degree split pointClick Here to view catalog pages