Hammers
Twenty years of CPSC NEISS emergency-room records for this consumer product category, combined with demographic breakdowns, multi-year injury trends, and matching recall notices.
Home Communication & Entertainment · CPSC Code 827
Down 28% over 5 years
The verdict
Hammers carry a danger score of 37/100 (low risk), driven by roughly 28,180 ER-treated injuries a year that are declining by about 28% over the last five years.
- 37/100
- danger score (low risk)
- 28,180
- ER visits per year (avg)
- 1.8%
- end in hospital admission
- 25-34
- most-injured age group
Every figure is rendered from the CPSC NEISS record for product code 827 - last data year 2024.
PlainSafety danger score
How this 37/100 score is built
The score is computed from four CPSC-derived factors for hammers - no opinion, no editorializing:
- Injury volume28,180 ER visits/yr
- Severity (hospitalization rate)1.8%
- Fatality rate0.01%
- 5-year trend-28%
See the full methodology for the exact weighting of each factor.
What the CPSC Data Shows
Hammers (CPSC product code 827, in the Home Communication & Entertainment category) generate an estimated 28,180 emergency-room visits every year in the United States, adding up to roughly 563,607 ER-treated injuries across the 20-year span from 2005 to 2024. PlainSafety derives a danger score of 37/100 for this category (low risk), combining raw injury volume, demographic reach, severity of outcome, and multi-year trend. The five-year trajectory shows that injury counts are declining by about 28% over the last five years, with the busiest year on record being 2007 (35,022 estimated ER visits) and the quietest 2023 (18,067 estimated visits).
The single most common ER diagnosis for hammers is fracture to the finger, accounting for approximately 61,037 visits across the 20-year NEISS window, followed by laceration to the finger (57,977 cases). The 25-34 age group absorbs the largest share of injuries, about 119,356 cases over the NEISS window, and males appear slightly more often than the opposite sex in that cohort. Severity outcomes from the NEISS disposition field show that 1.8% of ER visits involving this product end in hospital admission or transfer, and a small fraction (0.01%) result in fatality.
Beyond the hospital-sampled NEISS projections, this page also aggregates 5 consumer incident reports filed directly on SaferProducts.gov, plus 20 anonymized ER narratives - together forming a layered picture of how hammers fail in real households. Every figure on this page comes from CPSC-published data: NEISS projects national estimates from a probability sample of about 100 U.S. hospital emergency departments, while SaferProducts.gov collects voluntary reports from consumers, manufacturers, and clinicians. The danger score, trend indicators, and demographic breakdowns update automatically when CPSC releases a new yearly NEISS file, which is why this page is dated 2024-12-31. For regulatory context, consult CPSC recall notices and the SaferProducts.gov public database linked below.
Annual Injury Estimates (2005–2024)
Source: CPSC NEISS national estimates CPSC NEISS national estimates Injuries represent ER-treated cases only
Who Gets Injured?
| Age Group | Male | Female | Total |
|---|---|---|---|
| 0-4 | 8,860 | 3,231 | |
| 5-14 | 28,101 | 9,807 | |
| 15-24 | 71,515 | 14,200 | |
| 25-34 | 101,320 | 18,036 | |
| 35-44 | 98,934 | 19,041 | |
| 45-54 | 76,389 | 16,395 | |
| 55-64 | 49,140 | 8,119 | |
| 65-74 | 23,310 | 4,596 | |
| 75+ | 10,501 | 2,064 |
Most Common Injuries
| Body Part | Diagnosis | Est. Injuries |
|---|---|---|
| Finger | Fracture | |
| Finger | Laceration | |
| Finger | Contusions, Abr. | |
| Hand | Contusions, Abr. | |
| Face | Laceration | |
| Head | Laceration | |
| Head | Internal Injury | |
| Finger | Crushing | |
| Finger | Other | |
| Hand | Laceration | |
| Finger | Hematoma | |
| Foot | Contusions, Abr. | |
| Eyeball | Contusions, Abr. | |
| Hand | Other | |
| Eyeball | Foreign Body |
Severity Breakdown
ER Visit Narratives
Real anonymized emergency room reports from the CPSC NEISS database.
52 YOM WAS HAMMERING METAL ANDF GOT A PIECE IN FINGER DX: FB
19 YOM INTO ER WITH A FOREHEAD LACERATION. HIS FRIEND WAS SWINGING A WOODEN MALLET LIKE A BAT AND IT SLIPPED OUT OF HIS HANDS STRIKING PATIENT IN THE FOREHEAD. DX: LACERATION TO RIGHT FOREHEAD
30YOM PRESENTS WITH THE LACERATION TO HIS LEFT THUMB AFTER HITTING IT WITH A HAMMER DX: LEFT THUMB LACERATION, DISTAL TUFT FRACTURE AND NAIL AVULSION
28YOM PRESENTS AFTER STRIKING HIS LEFT HAND WITH A HAMMER ABOUT THE MID INDEX FINGER METACARPAL. STATES THAT IMMEDIATELY SWELLED AND THE SWELLING HAS GONE DOWN SOME BUT HE STILL HAVING THE SWELLING IS HAS TROUBLE WITH MOVING THE FINGER. XRAY NEGATIVE FOR FRACTURE DX: CONTUSION OF HAND
31YOM C/O FINGER PROBLEM. PATIENT REPORTS HITTING FINGER WITH HAMMER. RIGHT 4TH FINGERTIP LACERATION. RADIOGRAPHS NEGATIVE FOR FRACTURE OR DISLOCATION. 2 CM LACERATION SUTURED. DX: LACERATION, RIGHT 4TH DIGIT SUTURED
30 YOM HIT ANKLE WITH A HAMMER DX: PAIN
85YOM C/O FOREIGN BODY. PATIENT STATES HE STRUCK A METAL OBJECT WITH A HAMMER AND BELIEVES A METAL SHAVING IS LODGED IN LEFT HAND. TINY PUNCTURE WOUND EXPLORED. NO FB LOCATED. DX: FB HAND
32YOM REPORTS AFTER A HAMMER FELL ON HIS HEAD. DX HEAD INJURY
43YOM FINGER INJURY WHEN THE PATIENT ACCIDENTALLY HIT IT WITH A SLEDGEHAMMER DX: OPEN DISPLACED FRACTURE OF DISTAL PHALANX OF LEFT RING FINGER
19YOM ACCIDENTALLY SMASHED HIS LEFT INDEX FINGER WITH A HAMMER DX: FRACTURED FINGER; SUBUNGUAL HEMATOMA FINGER
11 YOM USING A HAMMER TO REMOVE TRIM FROM A WALL AND HIT SELF ON THE HAND. DX HAND LACERATION
36YOM PATIENT WAS CHOPPING WOOD USING A SLEGEHAMMER, ACCIDENTALLY MISSED AND HIT HIS FINGER, ALCOHOL INTOXICATION BAL NOT COLLECTED DX: LACERATION OF RIGHT INDEX FINGER WITHOUT FOREIGN BODY WITH DAMAGE TO NAIL, ALCOHOLIC INTOXICATION WITHOUT COMPLICATION
Consumer Incident Reports
Reports filed by consumers on SaferProducts.gov.
I had a Sears Craftsman battery powered hammer laying on my work bench. I had not used it for several months and it was not in the charger. The hammer spontaneously ignited scorching my work bench. My brother was at home at the time, smelled smoke and traced it to the basement. He removed the tool from the basement and watered down the work bench. If he had not been at home or if he had gone to bed I would have lost house and probably my brother.
The caller works for WMTA safety department. The caller stated that the head of the hammer becomes loose from the handle. The caller stated that the head could fly off injuring people nearby and damaging nearby property. The caller stated that the following hazard was identified with one hammer. They have 400 of these hammers and have tried to retrieve as many as possible. The caller stated that the ones retrieved have gone through testing through their agency. The other retrieved hammers have done the same thing at the testing facility after a few hits. The caller stated that the manf has been contacted in regards to this hazard. The caller stated that the manf has been in contact with their QA group and is working it out. The caller stated that their agency is taking the appropriate actions but would like to file this report to make others aware of the issue.
We bought the THE ROCK EXCAVATOR FIELD KIT (Backyard Safari) from [REDACTED]. The heavy, steel head of the hammer came off when my daughter was using it. Luckily, she was not hurt. This is a link to their web site. http://www.backyardsafari.com/patch-program/the-rock-excavator/ [REDACTED]
The hammer I purchased at 99 CENT ONLY STORE, on Clairemont Mesa Blvd., San Diego, Ca., for my grandson, came apart after one use. It turns out that the very heavy iron head is attached to a flimsy steel tube with only a brittle plastic band that shattered on first use! It could have caused serious injury had anyone been standing where the head landed. I called the 99 Cent Only Stores customer service, but they hung up on me and I received recorded messages when I tried to call back. They have never returned my call, even though I left a detailed message on their answering machine, so I don't think they intend to acknowledge the information.
I was using hammer to build a frame for workbench iam making. The metal head and inner part of hammer slid out of rubber handle and struck the wall near me. My fiance's child was playing in area and could have been injured or killed by this hammer. I contacted manufacturer to seek replacement since the retailer no longer carries this hammer. It was very difficult to navigate phone menus to actually speak to someone at manufacturer and when i finally did get to the right place, they were rude an refused to help simply stating that i shoul just go buy a new hammer even though i spent @50.00 on this one approx 6 yrs ago. Its a good thing this hammer did not cause injury or significant property damage... The hammer has no model number listed but i have enough pics to help ifentify it.
Product Recalls
Search for active and past recalls related to hammers on the CPSC website.
Frequently Asked Questions
How dangerous are hammers?
Based on 20 years of CPSC data, hammers have a danger score of 37/100 (low risk). An estimated 28,180 ER-treated injuries occur annually in the U.S. related to this product category.
What are the most common injuries from hammers?
The most common injury is fracture to the finger, accounting for approximately 61,037 injuries over 20 years.
Are injuries from hammers increasing or decreasing?
Down 28% over 5 years.
Who is most at risk for hammers injuries?
The 25-34 age group accounts for the most injuries, with approximately 119,356 cases recorded over 20 years. Males are more frequently injured in this age group.
What happens when someone is injured by hammers?
Of all ER visits involving hammers, approximately 1.8% result in hospital admission. The majority of patients (98.2%) are treated and released from the emergency department.
How can I report a safety problem with hammers?
You can file a consumer incident report at SaferProducts.gov, the official CPSC reporting portal. Reports help the CPSC identify emerging hazards and trigger investigations or recalls. You can also call the CPSC hotline at 1-800-638-2772.
Related Products in Home Communication & Entertainment
Safety Guides
What this means for you
Treat the 37/100 score as relative risk between products, not your personal odds of injury.
- See where this category ranks against every other tracked product. Full rankings
- Injuries cluster in the 25-34 age group, take extra care if that describes your household.
- Check for active recalls on this product before you assume it is safe. CPSC recalls
NEISS estimates ER-treated injuries from a national probability sample of hospitals; they do not capture injuries treated elsewhere or not treated at all.
Data: CPSC National Electronic Injury Surveillance System (NEISS) 2005–2024 and SaferProducts.gov consumer incident reports. Injury estimates are based on a nationally representative probability sample of U.S. hospital emergency departments. This page is for informational purposes only and is not affiliated with the CPSC.
Read our methodology - how this data is sourced, scored, and verified.