- ▲Package content: A total of 6 sds plus electric hammer drill bits concrete drill bit, respectively 1/4 inch(6mm), 5/16 inch(8mm), 3/8 inch(10mm), 1/2 inch(12mm), 9/16 inch(14mm), 5/8 inch(16mm). Each 1pcs, total length 6 inch(150mm), working length 3.15 inch. concrete carbide sds drill bit set.
- ▲Tungsten steel alloy forging: The hardness, wear resistance and strength of this SDS+ cross sds plus bits are greatly improved after high temperature quenching. It is more durable on the basis of sharpness.
- ▲Tungsten steel alloy forging: The hardness, wear resistance and strength of this cross SDS+ bits are greatly improved after high temperature quenching. It is more durable on the basis of sharpness.
- ▲Double spiral chip flute: When encountering thick steel bars in the wall, there will be no sticking or damage. When encountering thin steel bars under 1/4″, you can easily pass through. Please bypass when you encounter thick steel bars. Performance exceeds the traditional one-line two Electric hammer drill with blade.
- ▲Upgraded cross four-blade masonry drill bit set : This four-blade carbide drill bit has a wider bearing surface than ordinary two-blade sds bits, high wear resistance, and long-lasting durability. the brick drill bit can be used for various cement wall concrete red diamond wall stone openings.
