They are so sharp they go through wood and concrete like butter and cut nice clean holes in concrete pavers. Great tool for drilling holes in shower tiles, concrete pavers, stone fireplace for mounting picture frames or curtain rods.
Pecifications:
1.1/4 inch hex shank fits all power tools without hammer drill.
2.Unique cross angle design, stable drilling, fast speed, not breaking the border.
3.Neat and smooth opening, no broken edge, no vibration phenomenon, not easy to break chips.
Material:Cemented Carbide Drill Bit Set
Shank Type:Hex
Color: Black
Package includes:
▲1/8" x 1pcs,Lngth 3.15"
▲5/32 x 1pcs,Lngth 3.18"
▲3/16 x 1pcs,Lngth 3.20"
▲1/4 x 4pcs,Lngth 4.02"
▲5/16 x 1pcs,Lngth 4.52"
▲3/8 x 1pcs,Lngth 4.66"
▲1/2 x 1pcs,Lngth 4.86"
NOTE: Keeping bits cool with a flow of cooling water when drilling will help to last the sharpness and durability.