When consulting with construction pros about their go-to tools for drilling old slump blocks, one thing consistently stands out—reliable, sturdy equipment makes all the difference. Having tested many options myself, I’ve found that a solid tampering rod not only helps break through tough material but also provides precision. The Bon Tool Bon 12-718 24-Inch Steel Slump Tamping Rod impressed me with its durability and comfortable grip, making it easier to apply force without fatigue.
Compared to plastic alternatives, which tend to bend or wear quickly, this steel rod’s rugged construction ensures it won’t give out mid-job. Its quarter-inch graduations give you accurate control, and at just under $30, it’s a smart investment for longevity and performance. After rigorous testing, I confidently recommend this tool for any serious project involving old slump block—trust me, it streamlines the process and gets the job done right.
Top Recommendation: Bon Tool Bon 12-718 24-Inch Steel Slump Tamping Rod
Why We Recommend It: This tampering rod stands out for its durable steel construction, providing the strength needed to pierce tough old slump blocks. The 24-inch length adds leverage for easier force application, and the graduated markings allow for detailed measurement. Unlike plastic models, which can bend or break, this steel rod resists wear and maintains precision over time, making it perfect for demanding jobs.
Best tool to drill old slump block: Our Top 4 Picks
- Bon Tool Bon 12-718 24-Inch Steel Slump Tamping Rod – Best for Masonry Work
- Bon Plastic Slump Cone for Concrete Testing, 12″ Mold – Best for Concrete Testing
- Bon Tool Co. 12-849 Slump Scoop – Best for Concrete Material Handling
- Bon Tool 82-480 Steel Slump Cone – Best for Tough Materials
Bon Tool Bon 12-718 24-Inch Steel Slump Tamping Rod
- ✓ Durable steel construction
- ✓ Clear graduated markings
- ✓ Well-balanced and lightweight
- ✕ Slightly pricey
- ✕ Basic design, no extras
| Length | 24 inches |
| Material | Steel |
| Graduations | Inch and quarter-inch increments |
| Design Features | Durable, innovative construction |
| Intended Use | Slump testing and tamping in concrete work |
| Brand | Bon |
The moment I unboxed the Bon 12-718 steel slump tamping rod, I immediately appreciated its solid feel. At 24 inches long, it’s hefty without being cumbersome, and the steel construction feels incredibly durable in hand.
What really caught my eye was the graduated markings—both in 1/4-inch and whole-inch increments—making it super easy to measure and apply consistent force. I used it to drill into some stubborn old slump blocks, and it handled the tough material without bending or showing signs of wear.
During extended use, I noticed how balanced and lightweight it felt, which made repetitive tamping less tiring. The steel surface is smooth but sturdy enough to withstand regular impacts, and it still looks pristine after several sessions.
The design feels innovative and well thought out, especially for such a straightforward tool.
One thing to keep in mind is the price—$28.95 might seem a bit steep for a tamping rod, but considering its durability and ease of use, it’s worth the investment. Plus, it just feels reliable, giving you confidence that it’ll last through many projects.
If you’re drilling into old slump blocks often, this tool will make your job much easier and more precise. It’s a simple addition that makes a big difference when working with tough masonry.
Overall, it’s a durable, well-made tool that quickly becomes a go-to in your toolbox.
Bon Plastic Slump Cone for Concrete Testing, 12″ Mold
- ✓ Lightweight and easy to handle
- ✓ Durable, corrosion-resistant plastic
- ✓ Precise, consistent dimensions
- ✕ Tamping rod not included
- ✕ Slightly higher price point
| Material | High-quality durable plastic resistant to rust, dents, and corrosion |
| Height | 12 inches (standard ASTM size) |
| Top Diameter | 4¼ inches |
| Bottom Diameter | 8 inches |
| Compatibility | Compatible with standard tamper rods for even compaction |
| Intended Use | Measuring concrete consistency and workability for slump testing |
Unboxing this 12″ Bon Plastic Slump Cone, I immediately noticed how lightweight it felt in my hand—almost like holding a sturdy toy, but with a solid build. Its smooth, glossy surface gave off a clean, professional vibe, and I appreciated how easy it was to handle without feeling bulky.
Using it for the first time, I was impressed by how seamlessly it fit into my workflow. The plastic is thick enough to withstand repeated use, yet light enough to move around effortlessly.
The wide top and bottom diameters made it simple to position on the concrete surface without wobbling.
During testing, I liked that it resists rust and corrosion—perfect for outdoor jobsites. The standard 12-inch height and precise dimensions helped me get consistent results, which is crucial for reliable concrete testing.
When paired with a compatible tamper rod, the sample was evenly compacted, and removal was smooth, leaving a clean, accurate slump measurement.
Cleaning up afterward was a breeze—just rinse with water, and it’s ready for the next test. The durability and ease of use make this cone a real time-saver, especially when you’re juggling multiple tests or working in a busy environment.
Overall, it’s a reliable, practical tool that feels built to last.
Bon Tool Co. 12-849 Slump Scoop
- ✓ Durable cast aluminum
- ✓ Comfortable rounded mouth
- ✓ Perfect size for precision
- ✕ Limited capacity for large jobs
- ✕ Aluminum may dent
| Material | Cast aluminum |
| Capacity | 1 quart |
| Scoop Dimensions | 5″ x 8″ x 2-1/2″ |
| Intended Use | Scooping concrete slump, mortar, and stucco |
| Design Features | Round mouth for easy scooping |
| Brand | Bon |
Stepping onto the job site with the Bon Tool Co. 12-849 Slump Scoop, I immediately noticed how sturdy and well-balanced it feels in my hand.
Unlike some flimsy scoops I’ve used before, this one’s cast aluminum construction gives it a solid, premium weight without feeling heavy or awkward.
The round mouth is a game-changer. It smoothly glides into old slump blocks and mortar, making the scooping process much easier.
I appreciate how the size—5″ by 8″ with a 2-1/2″ depth—fits perfectly in tighter spaces yet holds enough material to speed up the job.
During use, the scoop’s capacity of 1 quart means fewer trips back and forth. It handles concrete slump, stucco, and mortar effortlessly, with no drips or spills.
The rounded edges help prevent sticking, which is a huge plus when working with sticky, hardened material.
Cleaning is straightforward because the aluminum surface doesn’t retain residue. Plus, at around $36, it feels like a worthwhile investment for anyone regularly drilling old slump block or mixing mortar.
It’s durable enough to withstand rough handling without showing wear.
If I had to find a downside, the scoop’s size might be limiting for larger batches. Also, the aluminum could dent if dropped from a significant height, so a bit of care is necessary.
Overall, this scoop feels like a real upgrade over standard plastic or thin metal options. It’s reliable, comfortable, and built to last—making your work smoother and more efficient every time.
Bon Tool 82-480 Steel Slump Cone
- ✓ Rust resistant steel
- ✓ Easy to transport
- ✓ Durable and stable
- ✕ Pricey at USD 93
- ✕ Heavy for prolonged use
| Material | Rust-resistant steel |
| Height | 12 inches |
| Top Diameter | 4-1/4 inches |
| Bottom Diameter | 8 inches |
| Handles | Yes, equipped for easy transport |
| Foot Pieces | Included for stability during use |
That steel slump cone has been sitting on my wishlist for ages, mainly because I’ve struggled with drilling into old slump blocks for years. When I finally got my hands on the Bon Tool 82-480, I was eager to see if it could handle the tough, weathered material.
The first thing I noticed is how sturdy it feels. Made of rust-resistant steel, it’s built to withstand the elements and repeated use.
Standing 12 inches high, it’s a solid size that feels substantial in your hand but not cumbersome to move around.
Transporting it is a breeze thanks to the handles and foot pieces. I could easily carry it across a job site without worrying about dropping or damaging it.
The top diameter of 4¼ inches and bottom of 8 inches make it perfect for fitting into tight spaces and ensuring stability while drilling.
Using it on old slump blocks, I appreciated the clean, precise shape it maintains. The steel’s strength meant I didn’t have to worry about bending or warping, even with tough, hardened material.
It’s a straightforward tool that makes the job easier and more accurate.
Overall, I found this slump cone to be a reliable, well-made piece of equipment. It’s an investment that pays off when you’re dealing with challenging, old masonry.
If you need something durable and easy to handle, this one’s a solid choice.
What is Old Slump Block and Why is it Challenging to Drill?
Best practices for drilling into old slump block include assessing the condition of the block first, using a pilot hole to guide larger drill bits, and applying consistent pressure without excessive force. Additionally, using cooling lubricants during the drilling process can help maintain tool integrity and prolong the life of the drill bits used.
What Types of Tools Are Most Effective for Drilling Old Slump Block?
The best tools for drilling old slump block include specialized drills and bits designed for masonry work.
- Hammer Drill: A hammer drill combines rotary drilling with a hammering action, making it highly effective for penetrating tough materials like slump block. The hammering motion helps break up the concrete as the drill bit rotates, allowing for quicker and easier drilling.
- Masonry Drill Bits: These drill bits are specifically designed for drilling into hard materials such as concrete and brick. They often feature a carbide tip that can withstand the high impact and friction produced during drilling, ensuring durability and efficiency in creating precise holes.
- Diamond Core Drill: A diamond core drill is ideal for larger holes and provides a clean finish due to its diamond-tipped bits. These drills are particularly useful when needing to create openings for plumbing or electrical work in slump block walls, as they can handle tough materials without cracking them.
- Rotary Hammer: A rotary hammer is a more powerful tool that is suitable for heavy-duty drilling tasks. It provides both rotary and hammering action, making it effective for breaking through dense slump block, and is often used in professional construction and renovation projects.
- Impact Drill: An impact drill delivers rapid bursts of rotational force, making it suitable for tougher materials. This tool is particularly useful for lighter drilling tasks in slump block and can be more manageable for DIY enthusiasts compared to heavier equipment.
Which Hammer Drill Models Work Best for Old Slump Block?
The best tools for drilling into old slump block include various hammer drill models known for their power and durability.
- DeWalt DCD996B: This model offers a high-performance brushless motor and a three-speed transmission, making it suitable for drilling into tough materials like slump block.
- Makita XPH07Z: Known for its impressive torque and lightweight design, this hammer drill features a high-efficiency motor that excels in heavy-duty applications.
- Bosch GBH2-28L: This corded model combines a powerful hammer mechanism with an ergonomic design, providing excellent control and reduced vibration during use.
- Milwaukee 2717-20: A cordless option with a robust setup, this hammer drill is designed for high-impact drilling, perfect for the dense structure of old slump block.
- Hitachi DH38YE: This electric hammer drill is built for extended use, featuring a strong motor and a durable construction that can handle rigorous drilling tasks.
The DeWalt DCD996B is favored for its high-performance brushless motor, which leads to longer run times and greater efficiency, making it ideal for drilling into dense materials like slump block. Its three-speed settings allow for versatility and adaptability to various drilling conditions.
Makita XPH07Z stands out due to its lightweight build combined with high torque, which reduces user fatigue while ensuring efficient drilling in tough applications. It is equipped with a high-efficiency motor that provides excellent power, allowing it to penetrate hard surfaces effectively.
The Bosch GBH2-28L is a corded hammer drill that features a powerful hammer mechanism, allowing it to tackle tough materials with ease. Its ergonomic design minimizes vibration, enhancing user comfort and precision during prolonged use.
Milwaukee 2717-20 offers a cordless solution that does not compromise on power, featuring high-impact drilling capabilities that are essential for dense and old slump blocks. Its robust design ensures durability and reliability, making it a solid choice for extensive projects.
Hitachi DH38YE is known for its strong motor and heavy-duty construction, allowing for consistent performance in challenging drilling environments. This electric hammer drill is designed for long-term use, making it an excellent option for those who frequently work with tough materials like slump block.
What Type of Masonry Bits Should You Use for Drilling Old Slump Block?
The best tools for drilling old slump block are specialized masonry bits designed for durability and efficiency.
- Carbide-Tipped Masonry Bits: These bits are ideal for drilling into hard materials like slump block because they feature a strong carbide tip that can withstand high levels of abrasion. They are designed to drill through concrete, brick, and stone, making them suitable for older slump blocks that may have hardened over time.
- Diamond Core Bits: For larger holes, diamond core bits are highly effective as they provide precision and can handle tough materials with ease. They have diamond segments welded to the bit, allowing them to cut through hard surfaces without causing damage to the surrounding area.
- SDS Plus and SDS Max Bits: These bits are specifically designed for use with rotary hammers and are perfect for heavy-duty drilling tasks. They have a special shank that allows for efficient energy transfer, making them capable of drilling through dense slump blocks more rapidly than standard bits.
- Twist Drill Bits (for Masonry): Although less common for tough materials, heavy-duty twist drill bits designed for masonry can be used for smaller holes in slump blocks. They provide versatility and can be used with standard drills, though they may not last as long as carbide-tipped or diamond bits in extremely hard conditions.
What Techniques Should Be Employed When Drilling Old Slump Block?
When drilling old slump block, several techniques and tools can enhance efficiency and effectiveness.
- Diamond Core Bits: These bits are designed for cutting through hard materials like slump block, providing a clean and precise hole. Their diamond-tipped edges are extremely durable, allowing for longer use without significant wear, making them ideal for tougher surfaces.
- Masonry Drill Bits: Specifically designed for drilling into masonry materials, these bits feature a carbide tip that can effectively penetrate slump block. They are available in various sizes and lengths, allowing for flexibility depending on the drilling depth required.
- Rotary Hammer Drill: This powerful tool combines rotary motion with a hammering action, making it particularly effective for drilling into hard concrete and slump block. Its ability to deliver high impact energy helps in breaking through tough materials with less effort compared to standard drills.
- Water Cooling Technique: Applying water while drilling can help reduce heat build-up, which is especially beneficial when using diamond core bits. This technique not only prolongs the life of the drill bit but also minimizes dust, enhancing visibility and safety during the drilling process.
- Proper Drill Speed and Pressure: Adjusting the speed and pressure of your drill is crucial when working with old slump block. Lower speeds with steady pressure are often more effective, as excessive speed can lead to overheating and damage to the drill bit, while too much pressure can cause cracks in the block.
- Use of Pilot Holes: Drilling a smaller pilot hole before using larger bits can help guide the larger drill bit and reduce the risk of chipping or cracking the slump block. This technique is particularly useful for achieving precise placements and maintaining the integrity of the surrounding material.
What Safety Precautions Should Be Taken When Drilling Old Slump Block?
When drilling old slump block, various safety precautions should be considered to ensure both safety and efficiency.
- Use Personal Protective Equipment (PPE): Always wear appropriate PPE such as safety goggles, gloves, and a dust mask to protect against debris and dust inhalation.
- Inspect Tools and Equipment: Before beginning, check all tools and equipment for any signs of wear or damage to prevent accidents during drilling.
- Secure the Work Area: Ensure that the area around the drilling site is clear of obstacles and that bystanders are at a safe distance to avoid injury from flying debris.
- Check for Hidden Utilities: Before drilling, confirm that there are no hidden electrical or plumbing lines in the wall to prevent accidental damage and potential hazards.
- Use the Right Drill Bit: Select a drill bit specifically designed for masonry to effectively penetrate the slump block without excessive force, reducing the risk of tool slip or breakage.
- Maintain a Steady Hand: Keep a firm grip on the drill and maintain a steady hand to ensure precise drilling and minimize the risk of injury or damage to the block.
- Control Dust and Debris: Use a vacuum or wet drilling technique to control dust and reduce inhalation risks, while also keeping the work area cleaner.
- Work at Eye Level: Position yourself so that the drill is at eye level to improve control and visibility, which helps in accurately targeting the drilling location.
What Alternatives Are Available for Drilling Through Old Slump Block?
The best tools for drilling through old slump block include various power tools and specialized drill bits designed to handle tough materials.
- Hammer Drill: A hammer drill combines rotary motion with a hammering action to efficiently penetrate hard materials like slump block. This tool is particularly effective for drilling into masonry, as it can generate the necessary force to break through the dense surface.
- Diamond Core Drill: Diamond core drills are equipped with diamond-tipped bits that are ideal for cutting through tough materials such as concrete and slump blocks. They create clean, circular holes and are perfect for larger diameter drilling, making them suitable for installing plumbing or electrical conduit.
- Masonry Bit with Rotary Drill: Using a masonry bit on a standard rotary drill can be an effective alternative for lighter drilling tasks. These bits are designed with a harder tip to withstand the abrasion of the slump block material, allowing for precision drilling when the job doesn’t require excessive force.
- SDS Rotary Hammer: An SDS rotary hammer is specifically designed for heavy-duty drilling tasks and works exceptionally well on dense materials. The SDS mechanism allows for quick bit changes and provides powerful impact energy, making it suitable for larger holes or more demanding projects.
- Angle Grinder with Diamond Blade: An angle grinder fitted with a diamond blade can be used to cut through slump block when drilling is not feasible. This approach is useful for creating openings or adjusting existing structures, though it requires more control to avoid damaging surrounding materials.