A Few Jackhammer “Tips and Bits”

Posted: January 28, 2014 by Bunce Rental in equipment rental, Home Improvement, Rental Tips, tool rentals
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Recently, we discussed the different types of jackhammers and pavement breakers available for rent in “Bust A Move With A Jack Hammer”.  As mentioned, the type of material and application you are working with will determine the type of hammer and tool bits (point, chisel, spade, etc.) you will need to efficiently complete your job.

The different tool bits let you break, cut, dig, or tamp using the same electric or pneumatic hammer and by choosing the right jackhammer tool for your job, you will be able to complete your work easier, faster and safer.  The material you are working with usually tells you which tool you will need to use.  For example, if you use the wrong jackhammer tool the concrete may not give it back or you’ll spend time punching holes in the concrete without doing much breaking.  That is why it is important to learn which tools are made for each type of job.

Concrete Points and Chisels

The standard moil point and the narrow chisel are the most widely used all-purpose tools for concrete breaking.  When using either of these tools it is important not to pry too much with the hammer as the tool shank could break prematurely.  Larger chisel bits are popular for scoring normal-strength concrete or breaking up weak concrete or other materials that are too soft for efficient moil point or narrow chisel work.  With soft materials, a moil point simply punches a hole, while a chisel bit does more breaking or chipping.

Asphalt Spades and Clay Spades

For materials such as asphalt use an “asphalt spade” with a 5-inch wide blade.  It cuts through thick asphalt pavement and removes deteriorated asphalt quickly.  But don’t use this tool to break or cut concrete – the thin blade and softer steel is too easily damaged.  Spades for clay or hardpan cutting and removal come in blade widths of 4-1/2 inches and 5-1/2 inches.  The blade section is thin and curved for faster cutting and easier earth removal.

Bushing Tools

Bushing tools are used to remove high spots in a floor or to roughen a surface for better adhesion of overlayments and top coatings.  Engineers sometimes specify a bushing tool for roughening concrete surfaces at construction joints.  The tool also is used for texturing architectural concrete surfaces.  Bushing tools have a serrated face with rows of pyramidal points made of hardened steel.  Typically there are 9 or 16 points.  The paving breaker tool has a 2” square face and the smaller chipping hammer and electric hammer tools have 1-3/4” square faces.

Rod, Stake and Pipe Drivers

You can also save time and effort by using tools that drive rods, stakes and pipes into the ground.  Ground rod drivers, furnished in diameters ranging from 5/8” through 2-1/2”, are used to drive form pins, curbing pins, and different sized steel and stakes.  A pipe driver, designed to accommodate more than one size pipe, uses a center stem to guide the pipe and the cup does the driving.

Tampers

To use a jackhammer or pavement breaker as a tamper, a shank with a square or round tamper pad can tamp backfill or repack loose materials in tight corners or narrow trenches.

Sharpening:  All of our points, chisels, spades, and bushing tools are professionally sharpened after each rental.  This ensures that each tool has the right cutting angles and is properly heat-treated to restore the integrity of the steel before use.

Remember, the right “tips and bits” make a jackhammer, chipping hammer or pavement breaker one of the most versatile and productive tools you can rent!

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