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Drill chuck for impact wrench; impact wrench accessory
NEW, Cowan Chuck is a drill chuck designed to fit the square rotor of an impact wrench. Now, an impact wrench can be used as a tool to drill materials such as concrete, cement, brick, stucco, stone, wood, etc., with this impact wrench attachment. An impact wrench makes a great hammer drill. This new impact wrench hammer drill utilizes the downward rotary hammer movement to drill more efficiently. The hammer action only starts when needed, providing a nice clean hole.
The Cowan Chuck, made of steel, is a durable impact wrench accessory for a 1/2 inch impact wrench. The pneumatic impact wrench and 1/2 inch drill chuck combination stays cool on the job. It's air-cooled. Impact wrench accessories can be expensive. You won t get this impact wrench accessory at a better price, and you won t find this impact wrench drill chuck anywhere other than from J R COWAN Mfg.
Try my Cowan Chuck for 30 days. If at the end of the 30 days, you don t think my Cowan Chuck is worth the money you paid for it, Send it back with your explanation. I will refund your purchase price.
What is an impact wrench? I know that I have heard of it.
Remember the last time you had your tires changed? The technician walked over to the wheel of your car. In his hand he held a gun like tool with a long air hose attached. He then squatted down. You heard a whirring sound as the lug nuts were removed. That gun like tool is an impact wrench.
What is the difference between the hammer drill and the impact wrench in drilling?
The hammer in a hammer drill is more of a vibrator than a hammer. An impact wrench has a real hammer in it. The hammer slams down with a force sufficient to pulverize the concrete. The rotor then turns slightly removing the debris. The action is repeated hundreds of times a minute. For an excellent understanding and inside view of both a hammer drill and an impact wrench please see the illustrations, theory of operation, and inside views on a different screen (so you don't loose your place here) at right-drill.com.
What kind of force does an impact wrench deliver?
The force is hundreds to thousands of pounds depending on the manufacturer and model. It is like having a small drill with a jack hammer in it.
Wouldn t thousands of pounds of force break the drill bit?
No because the hammer travel is limited inside of the impact wrench. It is only allowed to travel a fraction of an inch.
Does the impact wrench drill faster than a hammer drill?
Does the impact wrench drill a clean hole?
Yes. By not applying a lot of pressure, you can start a hole clean without the use of the hammer. Consequently, you can lighten up at the finish of the hole. The hammer will stop and the rotor will still turn. The result is a clean hole through and through.
What materials is the impact wrench drill suitable for?
Cement, Concrete, stucco, brick, stone, block, wood, metal etc.
What drill bits does the Cowan Chuck accept?
Any drill bit that will fit into a inch drill chuck. Many larger bits have shanks that are cut down to fit into a inch chuck. Cowan chuck accepts SDS drill bits.
Drill bits get hot, don t they?
In between the strokes of the impact wrench, the drill bit is cooling. With the hammer drill, the bit constantly turns. The operator applies a constant force. In between vibrations, friction continues. The bit is continually heating up. Sometimes they get so hot they discolor. With the impact wrench friction is much less. The hammer pulverizes the surface under the drill. The bit only has to remove it. Result is a much cooler, longer lasting bit.
Impact wrenches run cooler than electric drills, right?
The electric drill gets hot! Sometimes you have to wear gloves. That is no fun on a hot summer s day. The pneumatic impact wrench NEVER gets hot.
Is the expelled air from the impact wrench useful?
The air expelled from the pneumatic impact wrench can be used to keep the debris away from the drill hole.
The impact wrench is much lighter. Many are less than 6 pounds. Electric drills get very heavy as the power requirements increase.
Do the hammer drill bits come loose when drilling?
Sometimes they do. The vibration of the hammer drill sometimes causes the drill bits to loosen up when drilling. That is why they came out with the SDS locking system.
Does the drill bits in the Cowan Chuck come loose when drilling?
No. With the Cowan Chuck, you don t even need to use the key. Hand tighten the drill into the chuck. When you start drilling, the hammer action auto tightens the chuck on the drill bit. When you stop drilling, you will find that the drill is so tight in the chuck, that you can hardly loosen it with the key. To loosen the drill bit is easy Drill in reverse! Automatically, the bit loosens in the chuck. No more drill bits coming loose as with the hammer drill.
How does the impact wrench drill compare with the pneumatic drill?
The pneumatic drill runs at a much slower RPM. It has no hammer. The impact wrench starts fast to give a clean hole start. It slows down to the optimum speed for drilling when the hammer starts.
Can I use a Cowan Chuck with an electric impact wrench?
The rotary hammer pounds with a turning action. The forces exerted on the bit are extreme. The bits wear out so quickly that they had to make a special, more expensive bit, to accommodate the heat and pounding forces. As the bit wears, debris can become lodged at the base of the bit causing the bit to jam in the hole. The bit must be disconnected from the rotary hammer and a tool such as vice grips used to pry the bit loose from the hole. Below is a picture of such a worn burnt bit.
Cowan Chuck is used by divers in Seawater
Cowan Chuck is used in seawater to drill holes in concrete pillars by divers. Read all about it and see the pictures at , page Drill Chuck.
If you had to make a inch hole in a concrete wall, would you rather lean against a 5 pound impact wrench drill or try to steady a 40 pound SDS hammer drill? It s A Do-it-yourselfer and contractor "must have" tool.
When you use a pneumatic impact wrench you can blow the debris out of the hole using a blow gun.
Yes. If you have a minute, visit right-drill.com. on a separate screen so you don't loose your place here. There you will learn how a hammer drill and an impact wrench really work. You will see pictures of the inside of the tools and an explanation of how the parts work together. You may be surprised.
cowanchuck.com (Please open in a new window so you don't loose your place here)
Returned COWAN CHUCK(S), with defect explanation including name and address, must be sent with transportation prepaid to: J R COWAN Mfg., 23613 Dunsmore Lane, Santa Clarita, CA 91354-2410. If our inspection team agrees that the part is defective and covered by our warranty, J R COWAN Mfg. will replace the COWAN CHUCK at our expense, postage prepaid, but if our inspection team determines that there is no defect, or that the cause of the defect was outside of the scope of our warranty, then you must bear the cost of returning the Cowan Chuck and or the purchase of a new one.
