Brand | Craftsman |
---|---|
Head Material | Fiberglass |
Handle Material | Fiberglass |
Color | Red, Black |
Item Weight | 20 Ounces |
Head Style | Flat |
Style | Hammer Only |
Global Trade Identification Number | 00885911570718 |
Manufacturer | CRAFTSMAN |
UPC | 885911570718 |
Part Number | CMHT51399 |
Item Weight | 1.25 pounds |
Product Dimensions | 12.75 x 6 x 1.38 inches |
Country of Origin | China |
Item model number | CMHT51399 |
Item Package Quantity | 1 |
Included Components | (1) 20oz. Fiberglass Hammer |
Batteries Included? | No |
Batteries Required? | No |
CRAFTSMAN Hammer, 20 oz Fiberglass General Purpose (CMHT51399)
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Purchase options and add-ons
Brand | Craftsman |
Head Material | Fiberglass |
Handle Material | Fiberglass |
Color | Red, Black |
Item Weight | 20 Ounces |
About this item
- Overstrike protection for added durability where fiberglass handles are most prone to break
- Overmold grip for improved grip during use
- Driving and pulling nails
- Full Lifetime Warranty, refer to "Warranty & Support" section below for full details
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Videos for this product
0:32
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You will hit the nail on the head with this hammer!Sherri York
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Craftsman Hammer #diyhomeimprovementSarah Ellen Randall
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These hammers are able to get the job done!!!WaveywithNoyes
Product information
Technical Details
Additional Information
ASIN | B07RBD7XZD |
---|---|
Customer Reviews |
4.8 out of 5 stars |
Best Sellers Rank | #2,603 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2 in Claw Hammers |
Date First Available | May 1, 2019 |
Warranty & Support
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CRAFTSMAN Hammer, 20 oz Fiberglass General Purpose (CMHT51399)
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Product Description
The 20oz. CRAFTSMAN fiberglass hammer is built for durability against overstriking with an added protective portion where most fiberglass hammers break. This added feature will give the hammer a longer life and added durability for frequent use.
Top Brand: CRAFTSMAN
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This Item CRAFTSMAN Hammer, 20 oz Fiberglass General Purpose (CMHT51399) | Recommendations | |||||
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Price | -25% $14.99$14.99 List: $19.95 | -13% $17.49$17.49 List: $19.99 | $22.99$22.99 | $18.55$18.55 | $12.38$12.38 | -19% $15.42$15.42 List: $18.99 |
Delivery | Get it as soon as Wednesday, Apr 23 | Get it as soon as Wednesday, Apr 23 | Get it as soon as Thursday, Apr 24 | — | Get it as soon as Wednesday, Apr 23 | Get it as soon as Wednesday, Apr 23 |
Customer Ratings | ||||||
Sold By | Amazon.com | GreatStar Tools | OX Tools | Fat Boy Tools | Amazon.com | Amazon.com |
head material | Fiberglass | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Carbon Steel |
head style | Flat | Straight | Straight | Straight | Flat | — |
handle material | Fiberglass | Fiberglass | Fiberglass | Fiberglass, Stainless Steel | Fiberglass | Alloy Steel |
grip type | — | Contoured | Ergonomic | Cushion | Contoured | Textured |
style | Hammer Only | Ergonomic | Unique,Ergonomic | Heavy Duty,Adjustable | German | 13 Inch Handle |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find this hammer to be a top-notch Craftsman tool that gets the job done, with a well-made construction and good weight that's heavy enough to do the work. They appreciate its comfort, value for money, balance, and smart-looking design, with one customer noting the bright color makes it harder to lose. The hand fit receives mixed feedback, with some customers saying it fits their hand well while others mention the handle is a bit short.
AI-generated from the text of customer reviews
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Customers find this hammer to be of good quality, getting the job done effectively.
"...20 oz Fiberglass Hammer is tough, reliable, and well-balanced, perfect for DIYers, professionals, and anyone who occasionally needs to whack things..." Read more
"Great hammer, I use it for DIY jobs around the house that require a slight heavier hammer...." Read more
"GREAT HAMMER, PUT IT TO USE RIGHT AWAY" Read more
"Well made and works as a hammer should..." Read more
Customers praise the hammer's build quality, noting it is well-made and tough, with one customer specifically mentioning the excellent construction of the grip and shaft.
"...The CRAFTSMAN 20 oz Fiberglass Hammer is tough, reliable, and well-balanced, perfect for DIYers, professionals, and anyone who occasionally needs to..." Read more
"Sturdy and balanced with a good amount of weight" Read more
"Well made and works as a hammer should..." Read more
"It was a craftsman so great, however, I had to return it because for me, as a senior lady, it was very heavy...." Read more
Customers appreciate the hammer's weight, with one noting it feels great in hand and another mentioning its well-balanced design.
"...✅ Heavy Enough to Do the Work, Light Enough to Not Destroy Your Wrist – At 20 ounces, it’s got enough weight to drive nails like a beast, but you wo..." Read more
"Sturdy and balanced with a good amount of weight" Read more
"My husband likes the handle & weight of it." Read more
"...It’s nice and heavy, and Craftsman, can’t do better than that." Read more
Customers find the hammer comfortable, with one mentioning its ergonomic design and cushioning.
"...✅ Fiberglass Handle = Less Vibration, More Comfort – Unlike old-school wooden hammers that make your hands feel like they’ve been in a street fight,..." Read more
"...Very ergonomic and the bright color makes it harder to lose." Read more
"Feels good in the hands, hasn't slipped out of my hands yet but has slipped out of the tool lanyard." Read more
"Well built. Comfortable. Great value for the money. Pleasure to use. You won't be disappointed...Unless you are Thor..." Read more
Customers find the hammer to be a great value, with one mentioning it is strong for the price.
"Good product great price couldn't find these prices anywhere else highly recommend." Read more
"Strong for the price" Read more
"Great price. Great hammer." Read more
"Great value." Read more
Customers find the hammer well-balanced.
"...The CRAFTSMAN 20 oz Fiberglass Hammer is tough, reliable, and well-balanced, perfect for DIYers, professionals, and anyone who occasionally needs to..." Read more
"Sturdy and balanced with a good amount of weight" Read more
"Strong and well balanced 👌..." Read more
"This hammer has great balance and does everything a hammer should do. I highly recommend." Read more
Customers like the hammer's design, finding it smart looking and nice, with one customer noting that its bright color makes it easier to spot.
"...Very ergonomic and the bright color makes it harder to lose." Read more
"Nice hammer. I bought it as an extra hammer to keep in the garage." Read more
"Nice. Smacks nails." Read more
"...It’s nice and heavy, and Craftsman, can’t do better than that." Read more
Customers have mixed opinions about the hammer's hand fit, with some finding it comfortable while others note that the handle is shorter than expected.
"I love this hammer. It fits my hand, and is easy to swing. I am a DYer, so it works great for me." Read more
"4 stars because the handle is little bit shorter than my other hammer" Read more
"This hammer has a slimmer handle which fits my hand perfectly. I love it!" Read more
"...The handle, especially with the flared grip end, is shorter than even the 16 oz EastWing and shorter yet compared to the 20 oz EastWing which is..." Read more
Reviews with images

Top reviews from the United States
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- Reviewed in the United States on March 25, 2025If you’re looking for a hammer that gets the job done without making you question your life choices, the CRAFTSMAN 20 oz Fiberglass Hammer is it. Whether you’re building, demolishing, or just angrily pounding things into submission, this hammer delivers.
Why It’s a Winner:
✅ Heavy Enough to Do the Work, Light Enough to Not Destroy Your Wrist – At 20 ounces, it’s got enough weight to drive nails like a beast, but you won’t feel like you did arm day at the gym afterward.
✅ Fiberglass Handle = Less Vibration, More Comfort – Unlike old-school wooden hammers that make your hands feel like they’ve been in a street fight, this fiberglass handle absorbs shock like a pro.
✅ Claw End That Actually Works – Need to yank out a nail from a questionable DIY project? This claw doesn’t bend, slip, or make you swear excessively.
✅ Built Like It Means Business – This hammer feels solid, well-balanced, and ready to last longer than your commitment to that weekend project.
Minor Annoyances (Because Nothing Is Perfect)
❌ Doesn’t Swing Itself – Unfortunately, manual effort is still required. No self-hammering technology… yet.
❌ Too Nice for Just Smashing Things – If you’re looking for a pure destruction tool, this might actually be too well-crafted for reckless demolition.
Final Verdict:
The CRAFTSMAN 20 oz Fiberglass Hammer is tough, reliable, and well-balanced, perfect for DIYers, professionals, and anyone who occasionally needs to whack things with authority.
⭐⭐⭐⭐⭐ Would hammer again. 🔨
- Reviewed in the United States on January 9, 2025Sturdy and balanced with a good amount of weight
- Reviewed in the United States on February 14, 2025Great hammer, I use it for DIY jobs around the house that require a slight heavier hammer. Very ergonomic and the bright color makes it harder to lose.
- Reviewed in the United States on March 5, 2025GREAT HAMMER, PUT IT TO USE RIGHT AWAY
- Reviewed in the United States on December 23, 2024Well made and works as a hammer should...
- Reviewed in the United States on September 24, 20244 stars because the handle is little bit shorter than my other hammer
- Reviewed in the United States on January 8, 2025Good product great price couldn't find these prices anywhere else highly recommend.
- Reviewed in the United States on March 25, 2025Excellent
Top reviews from other countries
-
pr7Reviewed in Mexico on September 11, 2024
5.0 out of 5 stars Martillo
Excelente producto,resistente excelente material,cómodo al empuñar.
-
robert gagnonReviewed in Canada on December 12, 2024
5.0 out of 5 stars Solidité
Bricollage
- Monsieur le MatouReviewed in Canada on December 7, 2024
5.0 out of 5 stars it hits the spot
good weight good balance.
-
Excelente . Material de primera y muy practica. Excelente calidad precio/calidad.Reviewed in Mexico on June 5, 2024
5.0 out of 5 stars Super precio calidad
Muy equilibrado. Y super barato .
Excelente . Material de primera y muy practica. Excelente calidad precio/calidad.Super precio calidad
Reviewed in Mexico on June 5, 2024
Images in this review
- BG789Reviewed in Canada on November 3, 2024
5.0 out of 5 stars Great hammer
No issues so far