1-Inch x 12-In SDS-Plus Carbide-Tipped Rotary Hammer Drill Bit

In this review the focus is a pair of 1-in x 12-in SDS-Plus rotary hammer drill bits made for contractors and serious DIYers who need large-diameter holes in concrete, brick and stone. The bottom line: these bits excel at fast, clean drilling through masonry because of a single carbide-tipped head and an open flute geometry that clears dust quickly. If you need repeatable, accurate 1-in holes in non-reinforced masonry and value speed and compatibility with SDS-Plus hammers, these are worth considering.

Key Features

• 1-in cutting diameter: delivers a full-inch hole size for anchors and sleeves without the need for step bits or coring tools.
• 12-in overall length: gives reach for deep placements and passing through thick material or formwork.
• SDS-Plus shank: fits common SDS drive rotary hammers for secure mounting and quick bit changes.
• Single carbide-tipped head: provides a hard, wear-resistant cutting face that keeps the bit cutting cleanly under heavy load.
• Unique flute design: accelerates dust removal during drilling which reduces heat and cutting resistance for faster progress.
• Pack of two with case: supplies a spare bit and protective storage to keep cutting edges intact between jobs.

Who It's For

These bits are best for masons, concrete form crews, and remodelers who frequently drill 1-in holes in plain concrete, brick and stone. They suit cordless and corded SDS-Plus rotary hammers where speed and hole accuracy matter, for installing anchors, sleeves, or through-holes.

They are not intended for reinforced concrete or rebar cutting; customers concerned about extreme bend resistance or repeated hard impacts should consider more heavy-duty carbide or multi-tip options designed specifically for rebar. Hobby users who drill only occasionally may find the size and specialty unnecessary.

Pros & Cons

Pros

• Fast drilling and accurate holes thanks to the carbide tip and flute geometry.
• Good compatibility via the SDS-Plus shank with most rotary hammers using that drive.
• Two-bit pack plus a case gives a ready spare and protects the bits between jobs.

Cons

• Not rated for reinforced concrete and can bend if used improperly or overloaded.

Specifications

Our Verdict

These 1-in x 12-in SDS-Plus carbide-tipped bits are a practical choice for professionals and serious DIYers who need quick, accurate holes in concrete, brick and stone without rebar. They deliver strong cutting performance and dust-clearing flutes at a good value when a spare is included, but users should avoid reinforced concrete and monitor for bending under excessive side load.

Frequently Asked Questions

Can these bits drill through rebar?
No. They are intended for concrete, brick and stone and are not rated for reinforced concrete or cutting rebar.

Will the SDS-Plus shank fit my rotary hammer?
Yes, the SDS-Plus shank is compatible with rotary hammers that accept SDS-Plus drive bits.

How many bits are included?
The package includes two 1-in x 12-in bits and a protective case.