Drill America
Drill America SDS7818 7/8" x 18" SDS-Plus Hammer Bit
SDS-Plus carbide-tipped bit drills stone and concrete with a steel shank for toughness
- Carbide tip resists wear for longer life in stone and concrete
- SDS-Plus shank locks securely into compatible rotary hammers
- Auto-weld construction on German and Swiss equipment ensures consistent quality
- Japanese-made carbide tip delivers reliable cutting performance
- 18 inch overall length provides deep reach for through-hole drilling
SDS-Plus Hammer Bit for Concrete
The Drill America SDS7818 is a carbide-tipped drill bit built for SDS-Plus rotary hammers. It targets professionals and serious DIYers who need reliable holes in stone or concrete. The 18-inch overall length suits deep drilling tasks in masonry walls or floors. Buyers who need a smooth shank for standard three-jaw chucks cannot use this bit.
SDS-Plus Interface Limits
The SDS-Plus shank locks only into SDS-Plus chucks and will not fit SDS-Max or standard round-shank drills. Carbide tips resist wear in hard aggregate but can chip if the bit wanders or strikes rebar. The 18-inch length reduces leverage control in overhead work. California Proposition 65 warnings note chemicals linked to cancer and reproductive harm.
Installation and Common Issues
Insert the shank until it clicks; the tool holds it without a chuck key. Start the hole at low speed to centre the tip, then apply steady pressure. Forcing the bit overheats the carbide and risks tip loss. Dust buildup in deep holes slows progress — withdraw frequently to clear debris.
Highlights
- Carbide tip resists wear for longer life in stone and concrete
- SDS-Plus shank locks securely into compatible rotary hammers
- Auto-weld construction on German and Swiss equipment ensures consistent quality
- Japanese-made carbide tip delivers reliable cutting performance
- 18 inch overall length provides deep reach for through-hole drilling
Specifications
| Brand | DRILL AMERICA |
|---|
Questions about this item
Is the 18" overall length the right choice for deeper concrete holes?
The 18" overall length suits deeper holes in concrete or stone, while shorter SDS-Plus bits handle shallower tasks.
How does the 7/8" diameter perform when drilling stone or concrete?
The 7/8" carbide-tipped cutting edge resists wear in stone and concrete, and the steel shank adds toughness for heavy impact.
What does the SDS-Plus shank limit in practice?
The SDS-Plus shank fits only SDS-Plus rotary hammers, so it will not work in standard three-jaw chucks or SDS-Max tools.
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