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What Circular Saw Should I Buy? : Review of the Hitachi C7SB2

Updated on October 20, 2017
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Eugene, an avid self taught DIYer, has acquired 30 years of experience with power/hand tools, plumbing, electrics and woodwork.

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Ideal Saw for Serious DIY

Having worn out two DIY circular saws from heavy and prolonged use cutting palettes, heavy timber etc, I decided to treat myself to a pro machine. Although I am not a tradesman, I do a lot of DIY, and my policy is that if a tool is used infrequently, a DIY model will suffice. However if a power tool is going to be used a lot, it makes economic sense to invest in a pro machine even though it may be double the price of the DIY model. Retail price for this saw is generally in the sub $160 range.

Hitachi C7SB2 Circular Saw

5 stars for Hitachi C7SB2 Circular Saw

First Impressions

The Hitachi C7SB2 is supplied in a strong blow-molded case. It weighs just over 10 pounds which is somewhat heavier than a DIY machine, but this is to be expected from a solidly built pro model. The base is made from solid aluminum alloy unlike DIY models, which have thin, pressed steel bases. The saw comes with a 7 1/4 inch (185 mm) 18 tooth TCT blade as standard. The motor casing is solidly built with easy access to the brushes, and the blade housing and guard are made from aluminum to reduce weight. As standard on a circular saw, adjustment of cutting depth is possible and also the bevel angle. The locking levers are broad and sturdy and can be clamped tightly shut with the thumb or palm. The bevel scale is easy to read.

The handle is comfortable in the hand with a non-slip grip. The power trigger has a strong spring with definite on/off action and unlikely to be inadvertently engaged.

My saw produced an accurate 90 degree cut straight from the box. However a nice feature is a grub screw in the base which allows setting of the stop to give an accurate 90 degree cut.

The most outstanding feature of the C7SB2 however is the power. 1700 watts (15 amp motor at 120v) gives it a cutting edge over its rivals, literally! 1200 or 1300 watt seems to be fairly typical for a circular saw with this diameter blade, but the extra few hundred watts provided by the motor in this model makes a difference. I have used the saw to cut through 5 x 2 s and the saw flies through the wood without struggling.

The only weak point on the saw is the lever/handle for retracting the safety guard. This is made from plastic and I reckon that a blow on the end of this could snap it off. It would have been better if this was made from aluminum. The saw also lacks a depth of cut scale and motor brake.

Some Specs.

(click column header to sort results)
   
   
Voltage
240 and 120 volt models available
Power
1700 watts (15 Amp at 120 volts)
Cutting depth
2 3/8 " or 60mm at 90 degrees and 1 7/8" or 47 mm at 45 degrees
Weight
4.6 kg or just over 10 pounds
Bore size
1 3/16" or 30mm
Blade size
7 1/4" x 5/64" x 1 3/16" equivalent to 185 x 2 x 30 mm metric
Plunge capacity
The saw is designed with no riving knife to allow easy plunge cutting. A handle on the guard allows it to be retracted safely
Bevel limit
55 degrees
No load rotational speed
5800 rpm

Verdict

Overall the Hitachi C7SB2 is a competitively priced saw with plenty of power. It is well built and sturdy and should give years of reliable service

Hitachi C7SB2 Available From Amazon

Hitachi C7SB2 15 Amp 7-1/4-Inch Circular Saw with 0-55 Degree Bevel Capacity
Hitachi C7SB2 15 Amp 7-1/4-Inch Circular Saw with 0-55 Degree Bevel Capacity

The Hitachi C7SB2 is a sturdy, well built saw and with a power rating of 1700 watt (15 amp), it makes light work of cutting through lumber! Ideal for the pro user or serious DIYer.

Currently selling for $79 on Amazon

 
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Sturdy metal lever for setting bevel angle
Sturdy metal lever for setting bevel angle | Source
............and for setting depth of cut
............and for setting depth of cut | Source
Retraction lever for blade guard
Retraction lever for blade guard | Source
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Adjustment grub screw in base. This adjusts the stop to ensure 90 degree setting is square.
Adjustment grub screw in base. This adjusts the stop to ensure 90 degree setting is square. | Source
Retracting the guard while cutting birdsmouths for the rafters of my shed
Retracting the guard while cutting birdsmouths for the rafters of my shed | Source

Cross Cutting a 9 X 1 1/2

Ripping a 9 X 1 1/2

© 2012 Eugene Brennan

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