Has anyone tried breaking a 1/4" glass plate with this? Did it work?

If you wish to break plate use a hammer, this will work on tempered glass if any thickness

Anyone use one of these to extract broken bolts? Is it strong enough to get a punch for a bit? Looking to remove a bolt inside my engine block.

I dont think john p actually ever tried this. Dont know about the cheaper utility version but the big #78 which Ive had for 15 years will put a divot in anything short of a broken drill bit. Ive removed broken taps with it a few times by softening the metal around the tap then repeatedly punching the tap in reverse. This tool has amazing power. That said, mine misfires about every half dozen clicks but doesnt bother me considering how well it works.

Do i need any machine to use this or take off the bike bolts

I dont understand the question,this is a center punch,not a take off tool.I used mine once,and the tip broke off.It was a piece of junk,so I don't know.If the bike bolts are rusted,or welded,on it seems like to me you are going to have to cut em off.

Would this work well to get a starter dimple for unibit/step bit when going thru metal studs or panel boxes?

It might. It works better if you drill a starter hole with a twist drill first. Usually the step-bit and unibit drills don't have enough of a point to start in the dimple that the center punch makes.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

General Tools 78 Heavy Duty Steel Automatic Center Punch

Product ID: 599379915

Details

Brand
General Tools
Colour
Solid Black
Item Weight
0.3 Pounds
Material
Alloy Steel
Product Dimensions
19L x 44W x

🎯Replaceable hardened steel tip

⚙️Adjustable spring tension

🛠️Heavy-duty steel body

€ 73.38

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered 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 Finland.

Secure transaction

Description

🎯 Punch Perfect Every Time — The Pro’s Choice for Precision & Durability

BUILT TO LAST - Durable alloy steel body with rust-resistant black oxide finish
TRUSTED LEGACY - Iconic General Tools quality, favored by professionals for over 40 years
ERGONOMIC CONTROL - Knurled finger grip ensures secure handling and reduces slippage
CUSTOMIZABLE IMPACT - Adjust spring tension for light or heavy strikes on wood and metal
PRECISION AT YOUR FINGERTIPS - Automatic spring-loaded punch for exact hole marking without a hammer

The General Tools 78 Heavy Duty Steel Automatic Center Punch features a robust alloy steel body with a replaceable hardened steel tip, designed for precise, slip-free hole marking on wood and metal. Its adjustable spring tension allows for customizable impact strength, while the knurled grip ensures secure handling. Trusted by professionals and DIYers alike, this tool combines decades of proven quality with modern convenience for efficient, one-handed operation.

Specifications

ASIN	B00004T7RF
Brand Name	General Tools
Colour	Solid Black
Country of Origin	USA
Customer Reviews	4.3 4.3 out of 5 stars (561)
Global Trade Identification Number	00038728310668
Hole Count	1
Importer Contact Information	ATM RETAIL 1st Floor Beside P and T Building Lakdi Ka Pul Hyderabad Telangana 500004
Included Components	Unit^Instruction Guide
Item Dimensions L x W x H	19L x 44W x 244H Millimeters
Item Type Name	Automatic Center Punch
Item Weight	0.3 Pounds
Manufacturer	General Tools
Material Type	Alloy Steel
Model Number	78
Number of Items	1
Operation Mode	Automatic
Part Number	78
Pin Hole Diameter	0.08 Inches
Sheet Count	1
UPC	038728310668 031113163498 080050277164
Unit Count	1.0 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 73.38

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered 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 Finland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews