Review on 🛠️ Powerful ASNOMY 11Pcs Rotary Hammer Chisels - Your Ultimate Tools for Precise Chiseling & Hammering by Darrin Lucas

From time to time I have to drill through a concrete foundation, rock or brick while doing housework. To mount a masonry screw, a hole must first be drilled up to the spruce. To do this I found a hammer drill with at least a 1/2" chuck as I don't have a drill with an SDS chuck. SDS stands for "Slotted Drive System" to hold bits with an SDS shank. This cross drill bit set Tungsten Carbide (TC) from ASNOMY is available in 7 sizes, 2 each for 6mm and 8mm for a total of 9. They are supplied in a compact plastic tube to fit all Photo 1 Tube, Figure 2 shows the pick heads with the TC -Cross design. Note that they have SDS shanks (picture 3) which when used with an SDS impact drill prevent the bit from rotating in the chuck. I have a 1/2" cable punch with a regular key chuck , that fits. I don't recommend trying them with a regular hammer drill or a regular cordless drill (unless it's a heavy-duty SDS type) or a drill with a "keyless" chuck, which doesn't do the drill well locked enough. The HAMMER drill repeatedly hits parallel to the drill to drive the tip into the material to be drilled. The IMPACT drill only emits impacts with a direction of rotation that is NOT suitable for these bits. These bits have a thick and heavy body to withstand the impact they are subjected to. Photo 4 shows a partial hole made in a piece of petrified agate wood. Photo 5 shows the scars on the cement floor of the garage from the hits of the drill. The bit made a hole and stayed sharp enough to make more. Concrete becomes lighter than stone! In photo 6 the installed drill and my gloves. ALWAYS USE EYE PROTECTION! High-speed rotating tools WILL throw debris that can cause serious injury. Remember to wear a respirator or heavy-duty dust mask when drilling in concrete, as inhaling the fine powder can cause problems with lung silicosis. Safety above all! I recommend this set of 9 ASNOMY SDS Carbide Shank Cross Drill Bits. The bits are solid, well made and should last a long time. They are excellent value for money.