1-3/8 x 13 x 18 in SDS Max Rotary Hammer Drill Bit - Heavy Duty

In this review of the 1-3/8 x 13 x 18 in SDS Max Rotary Hammer Drill Bit, the bottom line is simple: this bit is for professionals and serious DIYers who need a long, robust masonry bit for deep concrete and brick holes. It stands out for its 460mm length and 35mm diameter, which allow deep 330mm drilling without frequent re-positioning. The review focuses on real use: the bit drills cleanly through concrete and stone when paired with a proper SDS Max rotary hammer, and the alloy steel body with a carbide tip gives reliable cutting performance under heavy load.

Key Features

• 35mm diameter: Provides a wide, consistent hole size for anchor bolts and through-holes without wandering during drilling.
• 460mm total length: Reaches deep into walls or thick slabs so users can complete 330mm drilling depth without changing tools.
• SDS Max shank: Ensures a secure connection to SDS Max rotary hammers for efficient hammering and reduced bit slippage.
• Alloy steel body: Balances toughness and stiffness so the shaft resists bending during heavy-duty use.
• Carbide tip: Concentrates cutting strength at the point to penetrate concrete, brick, and stone effectively.

Who It's For

This drill bit suits tradespeople, concrete contractors, and experienced DIYers who need to bore deep holes in masonry, brick, stone, and poured concrete. Its length and wide diameter make it especially useful for installing large anchor bolts, through-hardware, or conduits where a single, long pass is preferred.

Less experienced users or those with light-duty drills should look elsewhere: the bit requires an SDS Max rotary hammer and some technique to avoid excessive wear on the carbide tip. It is not intended for small handheld drills or for delicate finishing work.

Pros & Cons

Pros

• Long 460mm length allows deep drilling up to 330mm without repositioning.
• SDS Max shank gives a secure fit and efficient hammer transfer for faster cutting.
• Carbide tip and alloy steel construction deliver good work quality on concrete and masonry.

Cons

• Carbide tip strength receives mixed feedback, so heavy, abusive use can shorten tip life.
• Requires an SDS Max rotary hammer and some skill to avoid premature wear, so not ideal for occasional light tasks.

Specifications

Our Verdict

The 1-3/8 x 13 x 18 in SDS Max Rotary Hammer Drill Bit is a sensible choice for tradespeople who need a long, durable masonry bit that achieves deep holes in one pass. It offers good value when used with the correct SDS Max rotary hammer and normal drilling technique, though users should expect to monitor tip wear under heavy, continuous use.

Frequently Asked Questions

Will this bit fit my hammer?
It fits rotary hammers that accept an SDS Max shank; check that your tool supports SDS Max (shank dia 18mm).

How deep can I drill with this bit?
The bit has a drilling depth of 330mm (13 in) and a total length of 460mm (18 in), suitable for deep anchoring and through-holes.

What materials is it best for?
It is designed for masonry, brick, stone, concrete, and cement walls and works best when used with appropriate hammering and feed pressure.