Choosing the right 1-1/2 inch masonry drill bit depends on your hammer drill type and the material you’re drilling. This guide highlights five top options for SDS Max and SDS Plus applications, explaining who each is best for and why. Whether you’re a homeowner, DIY enthusiast, or professional contractor, these bits are selected to deliver cleaner holes, greater durability, and longer service life.
Summary of selected products
| Product | Shank Type | Length | Best For |
|---|---|---|---|
| 1-1/2 Inch x 15 Inch SDS MAX Rotary Hammer Drill Bit | SDS MAX | 15″ | Heavy-duty concrete, brick, stone in SDS Max drills |
| 1-1/2″ x 13″ SDS Max Hammer Drill Bit | SDS Max | 13″ | Long reach, general SDS Max masonry drilling |
| 1-1/2″ x 12″ SDS Plus Hammer Drill Bit | SDS Plus | 12″ | Standard SDS Plus hammer drills |
| 1-1/2 Inch Wet Diamond Core Drill Bit | 1-1/4″ UNC | 14″ | Reinforced concrete and hard masonry |
| BOSCH HC5091 1-1/2 in. x 21 in. SDS-max Speed-X Carbide | SDS Max | 21″ | Long-reach concrete drilling with durable carbide head |
1-1/2 Inch SDS MAX Rotary Hammer Bit With U-Flute
The 1-1/2″ x 9.5″ x 15″ SDS MAX drill bit is designed for SDS MAX rotary hammer drills and is carbide-tipped for robust performance in brick, stone, and concrete. It is best for heavy-duty applications where SDS MAX compatibility is available. This bit is suited for professional use on large-diameter holes in hard materials. A potential limitation is that it will not fit SDS Plus shanks, so verify your hammer type before purchasing.
Who this is best for
Contractors and heavy DIYers who own an SDS MAX hammer drill and routinely drill large-diameter holes in concrete or masonry.
Why selected
Its 1-1/2″ diameter and long reach maximize drilling depth in tough materials, and the SDS MAX compatibility ensures a secure fit for demanding tasks. The carbide tip provides durability in repetitive drilling.
Caution
Not compatible with SDS Plus hammers. Confirm hammer compatibility before ordering to avoid an unused tool.
1-1/2″ x 13″ SDS Max Hammer Drill Bit
This Keewaki SDS MAX bit features a 4-cutter carbide head and an upgraded heat treatment to enhance hardness and wear resistance. Its extended 340mm total length offers longer reach and deeper drilling while maintaining solid performance. The cross-tip carbide head supports faster penetration and smoother operation in concrete, brick, and masonry.
Who this is best for
Users needing extra reach for overhead or deep-core drilling with SDS MAX hammers, particularly when drilling into dense concrete or brick.
Why selected
The longer reach and cross-tip carbide design provide reliable performance in challenging materials, making it a strong choice for professional workloads.
Caution
Only compatible with 18mm SDS-Max hammers; not suitable for 10mm SDS-Plus systems.
1-1/2″ x 12″ SDS Plus Hammer Drill Bit
Keewaki SDS Plus bits are built for heavy-duty drilling into concrete, brick, stone, and masonry. The cross carbide tip promotes precise and fast cutting, and the SDS Plus shank ensures quick, secure tool changes in standard hammer drills. These bits aim to balance durability with practical performance for both professionals and serious DIYers.
Who this is best for
Users with SDS Plus hammer drills seeking reliable performance for routine masonry drilling in concrete or brick.
Why selected
The cross carbide tip and SDS Plus compatibility deliver consistent results and easy tool changes, ideal for ongoing masonry work.
Caution
Performance depends on the drill’s compatibility with SDS Plus systems; verify shank type before purchase.
1-1/2 Inch Wet Diamond Core Drill Bit
This wet diamond core bit has a 1-1/4″ universal thread and a drilling depth of 14″. It’s designed for reinforced concrete, block, and hard masonry. Upgraded teeth reduce noise and improve drilling efficiency, and the product emphasizes concentricity testing to minimize hole deviation.
Who this is best for
Professionals requiring clean, precise core holes in hard concrete and masonry with a need for reduced noise and consistent accuracy.
Why selected
Diamond teeth and a sturdy design facilitate efficient core drilling in demanding materials, with attention to hole accuracy.
Caution
Ensure compatibility with your drilling rig’s threading before ordering to avoid mismatches.
BOSCH HC5091 1-1/2 in. x 21 in. SDS-max Speed-X Carbide Rotary Hammer Bit
This carbide rotary hammer bit is designed for SDS-max hammers and Hilti TE-Y/TE-FY shanks. It emphasizes durability with a solid carbide head, intended to stay sharper longer for more holes drilled before needing replacement. It fits all SDS-max hammers and is built for masonry and concrete drilling.
Who this is best for
Users with SDS-Max hammers who require a durable, long-lasting bit for repeated drilling in concrete and masonry.
Why selected
The universal SDS-max compatibility and carbide head provide reliable performance and longevity in demanding tasks.
Caution
Check hammer compatibility with Hilti TE-Y/TE-FY shanks to ensure a proper fit before purchase.
Buying Guide
What is the difference between SDS Max and SDS Plus bits?
SDS Max bits are larger and designed for heavy-duty drilling with more material removal per bite. SDS Plus bits are smaller and intended for lighter, versatile tasks in common hammer drills. Your drill’s chuck and shank type determine compatibility.
How do I choose length and diameter?
Longer bits reach deeper into hard materials; consider hole depth requirements and drill power. A 1-1/2 inch diameter is suitable for larger holes, but ensure the material’s density and the drill’s power can handle it.
What about carbide vs diamond tips?
Carbide tips excel in concrete and masonry and provide good wear resistance for general heavy-duty use. Diamond cores are best for reinforced concrete and ultra-dense materials but are typically more specialized and costly.
What should I check before buying?
Verify shank type (SDS Max vs SDS Plus), overall length, and compatibility with your hammer drill model. Check for heat treatment or upgraded coatings that improve hardness and wear resistance for extended service life.
What are common limitations to watch for?
High-diameter bits like 1-1/2″ may not fit smaller drills or older models. Some bits are designed for specific hammer types and cannot be interchanged without adapters.
Maintenance tips
Keep bits clean and dry after use, inspect carbide heads for wear, and avoid forcing a bit in hard materials to prevent damage to the bit or drill.
FAQ
- Q: Are these bits universal for all hammer drills?
- A: No. Many are SDS Max or SDS Plus specific. Confirm your drill’s shank type and compatibility with the bit before purchasing.
- Q: Can I use a 1-1/2 inch bit for all concrete drilling jobs?
- A: It depends on the material density, required depth, and drill power. For very hard materials, consider carbide-tipped or diamond bits designed for such conditions.
- Q: Why would I choose a longer bit?
- A: Longer bits reach deeper into materials and reduce the need to reposition the drill for deep holes, improving efficiency on large projects.
- Q: What is the advantage of a cross-carbide tip?
- A: The cross-carbide tip improves precision, penetration speed, and wear resistance, especially in masonry and concrete.
- Q: Should I worry about noise with slow drilling?
- A: Upgraded teeth and proper coolant or wet drilling can reduce noise and improve efficiency, particularly with Diamond or high-hardness bits.