1-1/2 x 18 in SDS Max Rotary Hammer Drill Bit - Deep Masonry Drilling

Our review of this 1-1/2 x 18 in SDS Max rotary hammer drill bit focuses on contractors and serious DIYers who need a heavy-duty option for deep holes in hard materials. The bottom line: it is built to drive clean, deep holes in concrete, brick and stone thanks to a 38mm carbide tip and a long 460mm overall length that yields a 330mm usable drilling depth. For anyone drilling anchor holes, through-holes, or service penetrations in masonry, the bit delivers reliable cutting action and the SDS Max shank makes it compatible with larger rotary hammers used on job sites.

Key Features

• 38mm diameter: Offers a large bore suitable for heavy anchor bolts and sleeves, reducing the need for multiple passes.
• 460mm total length: Provides reach for deep penetrations and working from one side of thicker walls without repositioning.
• 330mm drilling depth: Delivers substantial usable depth for through-holes, embeds, and deep anchor installations.
• SDS Max shank: Ensures a secure fit in professional rotary hammers for consistent impact transfer and reduced slippage.
• Carbide tip: The + type carbide tip resists wear on abrasive concrete and brick, keeping cutting edges sharper longer.
• Alloy steel body: Balances toughness and flexibility to withstand repeated hammering in masonry applications.

Who It's For

This drill bit is aimed at professional tradespeople and serious homeowners who use an SDS Max rotary hammer for heavy masonry work. It suits electricians, plumbers, and anchorset installers who need a large-diameter hole in concrete, brick, stone, or cement walls.

It is less appropriate for casual users with only lighter SDS Plus tools or for tasks that require very shallow or small-diameter holes. If you rarely drill masonry or only need small bits, a smaller, less expensive set would be a better fit.

Pros & Cons

Pros

• Large 38mm cutting diameter for heavy anchors and sleeves.
• Long 460mm length with a 330mm drilling depth reduces the need for extensions or multiple setups.
• SDS Max shank gives secure engagement and consistent power transfer in professional hammers.
• Carbide tip improves longevity and cutting performance in abrasive materials.

Cons

• Some users report mixed impressions of tip strength, so extreme repeated use in very abrasive aggregate may wear faster than expected.
• Designed for SDS Max tools only, so it is not compatible with SDS Plus rotary hammers without an adapter.

Specifications

Our Verdict

This 1-1/2 x 18 in SDS Max rotary hammer bit is a practical choice for professionals and advanced DIYers needing deep, large-diameter holes in masonry. Its long reach, secure SDS Max fit and carbide tip make it good value for routine anchor and through-hole work, though users expecting extreme tip longevity in the harshest aggregates should monitor wear and replace as needed.

Frequently Asked Questions

Will this bit fit my rotary hammer?
It fits rotary hammers with an SDS Max chuck; it will not fit SDS Plus tools without an adapter.

What materials can it drill?
It is built for masonry, including concrete, brick, stone, and cement walls.

How deep can I drill with it?
The bit has a total length of 460mm and a usable drilling depth of about 330mm.