1-1/8 in x 18 in SDS Plus Rotary Hammer Drill Bit - Solid Concrete

In this review the 1-1/8 in x 18 in SDS Plus rotary hammer drill bit is evaluated for tradespeople and serious DIYers who need a large-diameter masonry bit that can tackle concrete, brick and cement. The bottom line: this bit's 28mm cutting diameter and long 460mm length make it a straightforward choice when larger holes are required, and its steel body with a carbide tip delivers the kind of drill accuracy and speed most users expect from a rotary hammer accessory.

Key Features

• Large cutting diameter: The 1-1/8 in (28mm) head makes fast work of creating larger anchor and sleeve holes without requiring multiple pilot passes.
• Extended reach: At 460mm (18 in) total length the bit allows deeper drilling into walls or overhead work without changing tools.
• SDS Plus shank: The SDS Plus shank fits most common rotary hammers for secure engagement and quick bit changes.
• Carbide tip: The carbide tip concentrates impact energy for efficient penetration into concrete and brick while resisting dulling.
• Steel body construction: The steel shaft provides torsional strength needed for heavy masonry work and steady drilling.

Who It's For

This bit is aimed at contractors, masons and DIYers who regularly drill larger holes for anchors, sleeves or conduit through concrete, brick and cement. Its 18 in length suits situations where deeper passes are required or where access to the workpiece is limited.

It is not ideal for light occasional household use where small diameter bits are sufficient, nor is it intended for rotary drills without SDS Plus capability. Users who need extreme flexibility in bit size range should consider a set rather than a single large bit.

Pros & Cons

Pros

• Good cutting speed and clean holes due to the carbide tip and large 28mm diameter.
• Stable fit in SDS Plus chucks gives dependable transfer of impact power and fit consistency.
• Strong steel construction offers value for money for heavy use tasks.

Cons

• Heavier and less maneuverable than smaller bits, making overhead or extended handheld work tiring.
• One customer reported the drill bending during use, indicating the need for proper tool support and controlled technique on tougher jobs.

Specifications

Cutting Diameter	1-1/8 in (28mm)
Total Length	460mm / 18 in
Shank Type	SDS Plus
Tip Material	Carbide tip
Body Material	Steel
Applications	Concrete, masonry, brick, cement

Our Verdict

The 1-1/8 in x 18 in SDS Plus rotary hammer drill bit is a focused tool for larger masonry holes, offering solid quality and value for tradespeople who need an extended reach and reliable cutting performance. Buy it if you routinely drill into concrete or brick and use an SDS Plus rotary hammer; skip it if you only need small diameters or light home repairs.

Frequently Asked Questions

Will this bit fit my rotary hammer?
It fits rotary hammers that accept SDS Plus shanks; confirm your tool uses SDS Plus before purchasing.

Is this suitable for reinforced concrete?
The carbide tip and steel body handle normal reinforced concrete, but users should take care if encountering heavy rebar and use proper technique to avoid bit bending.

How deep can I drill with this bit?
The total length is 460mm (18 in), giving substantially deeper drilling than standard bits; actual usable depth depends on your drill and how much of the shank engages the chuck.