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General Tools & Instruments 79 Steel Automatic Center Punch

3.9 out of 5 stars 29 customer reviews

List Price: $24.46
Price: $18.39 ($18.39 / each) & FREE Shipping on orders over $35. Details
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  • DELIVERS A HIGH IMPACT STRIKE - one-handed spring-loaded impact operation, no hammer required
  • ADJUSTABLE SPRING TENSION - adjustable spring tension cap for light or heavy strokes and marking
  • ALL STEEL 5" BODY - center punch has an all-steel body, knurled finger grip and rust-resistant black oxide finish, 1/2" body diameter
  • STEEL POINT - threaded, replaceable hardened steel point and shaft
  • AUTOMATIC PUNCH DEPTH - center punch can be set for repetitive work
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64 new from $16.91 1 used from $16.00
$18.39 ($18.39 / each) & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • General Tools & Instruments 79 Steel Automatic Center Punch
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Total price: $33.89
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Size Name: full size

Product Description

Size Name: full size

Product Description

Adjustable for light or heavy markings. Threaded replaceable hardened steel point and shaft.

From the Manufacturer

Use automatic center punches to precisely punch material for drilling and layout work. Spring operated tool drives hard point in a single one-handed operation that eliminates striking a punch with a hammer. Spring tension cap can be adjusted for light to heavy strokes. Punch depth can be set for repetitive work. This is a steel automatic center punch for making lighter markings than #78. It has a black oxide finish that inhibits rust. The all-steel body is 5" with threaded, replaceable hardened steel point and shaft. The body diameter is 1/2".

Product Information

Size Name:full size

Technical Details

Part Number 79XXX
Item Weight 3.2 ounces
Product Dimensions 8.6 x 3.1 x 1.6 inches
California residents Click here for Proposition 65 warning
Item model number 79XXX
Size full size
Color BLACK
Style Steel
Item Package Quantity 1
Number Of Pieces 1
Warranty Description Manufacturer

Additional Information

ASIN B00004T7RH
Customer Reviews
3.9 out of 5 stars 29 customer reviews

3.9 out of 5 stars
Best Sellers Rank #79,002 in Home Improvements (See top 100)
#82 in Home Improvement > Power & Hand Tools > Hand Tools > Punches > Pin Punches
#5,617 in Home Improvement > Contractor Supply
Shipping Weight 2.4 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available February 13, 2005

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Reviews

Top Customer Reviews

By A Customer on March 18, 2002
Size: full size
I AM A PROFESSIONAL CARPENTER AND METAL WORKER AND I WILL TELL YOU THAT THIS PUNCH IS VERY POOR FOR THE PRICE. I BOUGHT MINE A YEAR AGO AND AM VERY SORRY THAT I DID. IT LEAVES NEXT TO NO INDENTATION IN THE MATERIAL AND A DRILL BIT WILL SLIDE RIGHT OFF OF IT. I RECENTLY PURCHASED A STARRETT AND HAVE FOUND THAT IT IS WELL WORTH THE FEW EXTRA DOLLARS FOR AN EXCELLENT PRODUCT. DON'T GO CHEAP, GET THE REAL DEAL!
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Size: full size
I purchased this tool and used it right away. I finished the job, the punch rolled off the workbench and TIP no more. After searching and searching, I finally found more TIPs. A 2 pack. Wow! So they know the TIPs are going to break with ease. I replaced the TIP. Put it to use marking for holes to put a convertible top on. SNAP! There goes another TIP. I just replaced it. Luckily, it was a 2 pack, right? Oh, forgot to mention that the TIPs are as much as the punch. So, that officially makes this the tool that keeps on giving... er, taking. Add that to the misfire (whatever makes it not work periodically), and I have another tool that im not willing to use for fear I'll just see more money going down the drain. I thought doing the work yourself meant saving.
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Size: full size
I am not happy with the construction of this product. I do alot of center punching in the line of work and this product failed to produce. The tip is removable and screws into the end of the shaft. It backs out quite frquently and the tip broke off at the threads after using it less than ten times. This is definitely not for industrial use maybe for the home user.
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Size: full size Verified Purchase
My old #79 General punch would run circles around this one. This has no power at all.
Ths spring is much smaller that the old one. Just about makes an indent in wood. In the very soft sterling silver
it just about scratches the surface, at the heaviest setting. The quality has gone way down with General Tool.
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Size: full size
This is the 3rd or 4th General model 79 punch that I have owned. The first three went through many thousands of holes each, along with replacement tips. The latest one I got had the same "model 79" stamped on it, but it sure seemed different to me than the previous ones I owned. The previous ones would sometimes misfire and not actuate. They probably did this 1 of 100 times, which I didn't like, but could live with. The new version did this 1 of 10 times. Truly annoying, bordering not usable. The tip shattered after a few hundred punches punching mild steel. The replacement tip did the same, but way up in the body of the punch. Despite having it on the heaviest setting, it still didn't make enough of a dent for a pilot drill to not walk. I threw it in the trash when my new Starrett came in. I suspect the "new" versions of this punch were probably made in a country where quality isn't important, and labor is cheap. I hope for General's sake they don't do this with any of their other products. I would rather pay $20 dollars extra for a tool that is reliable and made in a place where quality and materials matter.
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Size: full size
Bought within the last year, and failed within the first month or so. The removable tip partially backed out without my notice, and furthur use destroyed the shaft threads that held it in. I used it for months, taped in place, until resorting to a tack weld, which has since broken. Because the stripped threads are not only on the tip, a replacement tip wouldn't solve the problem. I have not used other punches, but the strike was hard enough for my purposes (mostly aluminum). I did find that the punch misfired frequently, causing frustration. Toying with the spring adjustment usually freed whatever was hanging up inside.

I am not altogether disappointed with the tool's construction and function, but I certainly would never pay full price for one of these again.
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Size: full size
I did not purchase this item from Amazon, but a local tool store. I also paid ten more dollars than is currently listed here. I use the punch quite a bit lunching aluminum extrusion and doors. So far it works perfectly. Easy push down with a decent indentation. No, it doesn't make a crater, but that's not what it's made for. I would happily purchase another one, albeit at a better price. I got real tired of those crappy, four dollar ones you can find at most stores.
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Size: full size
I can't tell you how many tips I went through until one irretrievably broke inside the threaded shaft. The shock of the internal hammer hitting the anvil loosens the tips and the threads started to brake off when it's next used. Not cool...

Pass on this guy. Buy a Starrett or another high quality brand. It's worth it in the long run
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General Tools & Instruments 79 Steel Automatic Center Punch
This item: General Tools & Instruments 79 Steel Automatic Center Punch
Price: $18.39
Ships from and sold by Amazon.com
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