【 New type】Mgtgbao Concrete Drill Bit Set, 10pcs Masonry Drill Bits Set Carbide Tip for Glass, Brick, Tile, Concrete, Plastic and Wood with size 3/16” (5mm),1/4” (6mm), 5/16” (8mm) ,3/8” (10mm), 1/2” (12mm).
- 2 cutter carbide tip of masonry drill bit set maximizes carbide surface contact for longer bit life..
- Four flute design cleans debris out for fast, efficient drilling.
- Three flats on shank eliminate bit slipping in chuck (except DW5232, DW5233, DW5237, DW5238).
- Rock carbide tip maximizes carbide surface contact for longer bit life.
- Three flats on shank eliminate bit slipping in chuck.
- Innovative tip reduces walking and increases accuracy.
- Used primarily to drill holes for mechanical anchors, fits standard 3/8-inch and 1/2-inch chucks.