If your hammer drill runs but the bit will not advance into concrete, check the hammer-drill setting, bit type and condition, chuck fit, and drilling technique before pushing harder. A regular drill—or a hammer drill set to rotation-only—does not provide the impact action used for masonry. If the tool stalls, release the trigger and stop to find the cause.
Why a hammer drill may not make progress in concrete
Concrete drilling depends on the right combination of tool, setting, bit, and technique. A problem with any one of these can leave the bit spinning without cutting effectively. The tool’s manual is the authority for its controls, speed, bit compatibility, and capacity; those details vary by model.
The tool is in the wrong mode
Hammer drills and rotary hammers combine rotation with impact for masonry. If a hammer drill is set to rotation-only, it may run normally but lack the percussive action needed to drill concrete. A standard drill without a hammer function is not a substitute. Check the manual for the correct hammer-drilling mode, direction, gear, clutch, and speed.
The bit is wrong, worn, or not secured
Use a sharp masonry bit explicitly rated for percussion drilling. Its shank must fit the chuck, it must be held securely, and its diameter must be within the tool’s rated capacity. A worn bit, incompatible shank, loose fit, or oversized bit can prevent effective drilling. A new bit will not fix an incorrect mode, a hole beyond the drill’s capacity, an obstruction, or a tool fault.
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- 2 cutter carbide tip of masonry drill bit set maximizes carbide surface contact for longer bit life.
- Four flute design cleans debris out for fast, efficient drilling
- Three flats on shank eliminate bit slipping in chuck (except DW5232, DW5233, DW5237, DW5238)
Pressure or alignment is working against the drill
Keep the bit square to the surface and use steady, controlled pressure. Excessive force can slow drilling and overheat the tool; side pressure can impede the bit. DEWALT’s manual cautions, “Too much force will cause slower drilling speeds, overheating, and a lower drilling rate.” Start at the speed recommended for your model and adjust your technique rather than forcing the bit.
Dust is clogging a deeper hole
In a deep hole, debris can interfere with cutting. Periodically withdraw the running bit partway to help clear the hole. DEWALT’s manual specifically warns against pouring water into a hole to settle dust, because it can clog the bit flutes and make the bit bind. Follow the manual for your own tool and process rather than treating that instruction as universal.
Rank #2
- HIGH QUALITY DRILL BIT SET; TITGGI Masonry drill bit set, industrial strength carbide drill bit tip, excellent abrasion resistance, make the drilling much more easier. this cement drill bits can easily penetrate various material (glass, ceramic, cement, wood, brick, travertine, hard plastic, etc.)
- FAST PENETRATION; This masonry bit is suitable for most general drill, electric drill, hand drill and bench drill, the double U-type groove slot design brings fast drilling dust remove, and 3-flats shank allows drill bit easy plug and to be held tightly, strong tungsten carbide drill bit tip and longer service life of TITGGI masonry drill bit.
- SATISFY ALL YOU DEMAND; Package includes 10 Pcs drill bit set: 1/8", 5/32", 3/16", 1/4", 1/4", 1/4", 1/4", 5/16", 3/8", 1/2", there are 10 differenct cement drill bit sizes, that will help in drilling by starting with the smallest bit and continuing to the size needed.
- PROFESSIONAL MASONRY BIT, WIDELY USED; TITGGI masonry drill bits, ideal for drilling fastner holes in bathroom tiles, ceramic drill bits for pots, or wall mirrors, can easily drill holes on tile, concrete, brick, glass, ceramic, wood, and reduces breakout, please cooling with water and control the speed when drilling.
- SECURE 3-FLAT SHANK FIT: Designed for standard keyed/keyless 3-jaw drill chucks, helping reduce slipping and hold bits firmly. Ideal for cordless drills, corded drills and drill presses in home repair, tile, brick and masonry projects
The bit has met an obstruction—or the drill has stalled
If the bit stops advancing at a particular depth despite correct setup and technique, an obstruction is possible, but it cannot be diagnosed from the symptom alone. Do not force the bit through. If the drill stalls, release the trigger immediately, remove the bit from the workpiece, and determine the cause before restarting. The Craftsman/Sears manual gives the same stop-and-assess instruction for a stalled drill.
How to troubleshoot safely, step by step
- Check the work area. Before drilling into a wall or other blind area, check for concealed electrical wiring, water pipes, and gas lines. Follow the applicable safety guidance and local procedures.
- Verify the tool and setting. Confirm that the drill has a hammer function and select hammer-drilling mode using the controls described in its operator’s manual. Check the specified direction, gear, clutch, and speed.
- Inspect the bit and chuck. Fit a sharp percussion-rated masonry bit with a compatible shank. Secure it correctly and confirm that its diameter is within the drill’s stated capacity.
- Reset your technique. Hold the drill perpendicular to the surface and apply controlled pressure at the speed recommended by the manual. Avoid side loading or pressing so hard that the motor slows or stalls. The cited DEWALT and Craftsman/Sears manuals describe a smooth, even flow of dust as an indication of a proper drilling rate.
- Clear debris as needed. For a deep hole, periodically draw the running bit partway out. Do not pour water into the hole unless the instructions for your particular tool and process explicitly support that method.
- Stop if progress ceases or the tool behaves abnormally. Release the trigger if the drill stalls, remove the bit, and check for an overload, improper use, obstruction, or other problem before doing anything else. Do not repeatedly pulse the trigger while the bit is stalled.
When to stop troubleshooting and get service
Stop using the drill if it repeatedly stalls, overheats, behaves abnormally, or still cannot make progress after you have confirmed the mode, compatible bit, rated capacity, and technique. Consult the manual for the exact model or contact the manufacturer’s service channel. Do not keep forcing the tool or attempt a repair based only on the symptom.
Rank #3
- CARBIDE TIPS AND STEEL BODIES: Each bit combines a spear-shaped carbide cutting tip with a steel body and spiral flutes that guide loosened material along the bit; use speed, pressure, and cooling suited to the surface
- 3-FLAT SHANK FOR STANDARD DRILLS: Fits compatible keyed or keyless 3-jaw chucks on corded drills, cordless drills, hand drills, and drill presses; not for SDS rotary hammers or 1/4-inch impact-driver collets
- 12 BITS IN 7 SIZES: Includes one 1/8", one 5/32", two 3/16", four 1/4", two 5/16", one 3/8 masonry drill bit, and one 1/2" bit for pilot holes and step-up drilling
- FOR MATCHING PROJECT SURFACES: Select masonry drill bits for brick, concrete, cement, stucco, ceramic tile, glass, wood, and plastic; begin at low speed, use light pressure, keep the drill aligned, and add water on hard surfaces
- MARKED SIZES WITH STORAGE CASE: Visible size markings help identify each diameter, while the included transparent case keeps all 12 bits together for selection, transport, and storage between home repair and installation tasks
Safety essentials for drilling concrete
- Read the drill’s operator manual and the bit or accessory instructions before use.
- Wear eye protection and use an appropriate mask or respirator when drilling creates dust.
- Check for concealed utilities before drilling into walls or other blind areas.
- Match the bit shank and accessory capacity to the tool; stop if the drill stalls.
Oklahoma State University’s EHS guide explains that hammer drills and rotary hammers use impact combined with rotation and a percussion bit to drill masonry. Its safety guidance also emphasizes reading instructions, wearing suitable protection, and matching accessories to the tool.
Quick Recap
Best Value
- Up to 5x life in concrete
- SHOCKWAVE Impact Duty engineered for hammer drills and impacts
- Sharpened carbide edges for faster starts in concrete, brick, and block
- Wide flute design removes dust faster, reducing heat & delivering more holes per charge
- ¼’” Hex shank for added tool versatility
Rank #4
- 10PCS Masonry Drill Bit Set: Includes 10 commonly used sizes from 5/32" to 1/2" for different drilling needs. A practical carbide drill bit set for installing wall anchors, screws, shelves, fixtures, bathroom hardware, kitchen accessories, and general home repair projects
- Carbide Tip for Multiple Materials: Designed with carbide tips to drill into concrete, brick, cement, ceramic tile, glass, plastic, and other masonry surfaces. Suitable for home improvement, remodeling, tile work, and everyday drilling tasks
- Hex Shank for Secure Grip: The hex shank design helps reduce slipping in the drill chuck and provides a more stable hold during use. Works with most standard electric drills, cordless drills, and compatible drill drivers
- Clean Drilling with Proper Use: For glass, ceramic tile, and other smooth surfaces, start at a low speed, keep the bit steady, and use water for cooling when needed. Do not use hammer mode on glass or tile to help reduce cracking and bit wear
- Versatile Home and Workshop Applications: Suitable for drilling pilot holes in walls, brick, tile, cement, plastic, and concrete for anchors or fasteners. Please match the drill mode, speed, and pressure to the material for better drilling results and longer bit life
Sources
- DEWALT instruction manual
- Craftsman/Sears hammer drill manual
- Oklahoma State University EHS: Hammer Drills & Rotary Hammers
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