Is it strong enough to break a car window glass, i mean if we get struck when car is on fire/accident.

Probably, but there are much more elegant and efficient solutions for that. There are plenty of small purpose built rescue tools for that, and you can go for something like a kubotan tool or a tactical pen that can break glass without taking up much volume and weight.

Is this fiberglass handle is strong? Can this be broken?

IT ALL DEPENDS ON THE WAY WE HANDLE IT

What is the material of the handle?

it says fiberglass in the description. i dont know wat is fiberglass but to a layman (like me) it seems like plastic type material. but dont think its weak or cheap quality. it is a very heavy and good quality hammer. i am going to buy another hammer lighter in weight so i have 2 options for my needs. hope this helps in answering ur question.

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STANLEY 51-187 20"/50.8cm FIBREGLASS Nail Hammer, 560gms, Used to Drive Nails, Fit Parts & Break Objects, Exclusive Rim Temper Reduces Incidences of Chipping or Spalling

Product ID: 64571815

Details

Brand
STANLEY
Colour
Others
Handle Material
Fibreglass
Head Material
Alloy Steel
Product Dimensions
28L x 10W x

💪560g balanced weight

🟡high-visibility yellow shaft

🛡️exclusive rim temper tech

¥5284

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Description

🔨 Nail it every time with Stanley’s tough, visible, and reliable hammer!

LIFETIME CONFIDENCE - Backed by Stanley’s limited lifetime warranty, built to be your trusted project partner.
HIGH VISIBILITY SHAFT - Bright yellow handle ensures you never lose sight of your tool on busy worksites or home projects.
LIGHTWEIGHT PRECISION - At just 560 grams, it offers perfect balance for controlled, efficient nail driving.
DURABLE FIBREGLASS CORE - Engineered for strength and long-lasting use without handle fatigue.
CHIPPING RESISTANT RIM TEMPER - Exclusive rim tempering reduces chipping and spalling, extending hammer head life.

The STANLEY 51-187 is a 20-inch fibreglass-handled nail hammer weighing 560 grams, designed for durability and precision. Featuring a high-visibility yellow shaft and an exclusive rim temper technology, it minimizes chipping and spalling for extended tool life. Ideal for driving nails, fitting parts, and breaking objects, it comes with a limited lifetime warranty, making it a dependable choice for professionals and DIY enthusiasts alike.

Specifications

ASIN	B00N1OM2X0
Best Sellers Rank	#521 in Home Improvement ( See Top 100 in Home Improvement ) #1 in Claw Hammers
Brand Name	STANLEY
Colour	Others
Country of Publication	India
Customer Reviews	4.6 4.6 out of 5 stars (713)
Grip Type	Textured
Handle Material	Fibreglass
Head Material	Alloy Steel
Head Style	Flat
Importer Contact Information	Tools Centre
Included Components	Included Components: 1 Hammer
Item Dimensions L x W x Thickness	28L x 10W x 15Th Centimeters
Item Type Name	Power & Hand Tools
Item Weight	500 Grams
Manufacturer	STANLEY, Stanley ,GAT NO. 135. 137 & 157. PO Mahalunge Talukha - Khed Pune 410501. India. Contact Number - 1860-425-1111
Manufacturer Contact Information	Stanley ,GAT NO. 135. 137 & 157. PO Mahalunge Talukha - Khed Pune 410501. India. Contact Number - 1860-425-1111
Manufacturer Part Number	51-187
Manufacturer Warranty Description	Limited lifetime warranty offered on the product
Model Number	51-187
Number of Items	1
Packer Contact Information	Stanley Black & Decker India Pvt Limited,GAT NO. 135. 137 & 157. PO Mahalunge Talukha - Khed Pune 410501. India. Contact Number - 1860-425-1111
Style Name	Fibreglass-560gm
Unit Count	1 Count

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¥5284

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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