Tech Blog
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results for Blog:
2025/07/21
HOW MUCH TORQUE DO I NEED IN AN IMPACT WRENCH
Tien-I Hand Tools, a professional manufacturer with over 20 years of experience, has categorized torque requirements into the following major applications:Home DIY: 3 ft-lbsAxle Nuts: 15 to 20 ft-lbsGeneral Passenger Car Repairs: 70 to 145 ft-lbsLug Nuts:
80 to 100 ft-lbsLight-Duty Truck Repairs: 1
2025/06/01
Is this really made by you? How to tell if it is 100% made in Taiwan
In 2025, due to tariff changes from the Trump administration in the U.S., the issue of country-of-origin labeling and “origin washing” has become highly sensitive worldwide. In reality, origin labeling has always existed in a gray area.Why isn't it black
and white?Because in the real world, goods f
2025/03/19
Hammer Drill vs. Rotary Hammer: What Are the Differences?
Hammer Drill– Its impact force is relatively low, making it suitable for light wood or masonry work, such as brick walls.– Some hammer drills can disable the impact function, converting them into regular drills.– Equipped with a three-jaw chuck.Rotary
Hammer– Uses a stronger impact force to drill h
2025/03/06
A Beginner's Guide to Hand Tools and Bolts: Assemble with Ease by Using the Right Tools!
Whether you're putting together a new desk at home, fixing your scooter, or tackling small repairs around the house, matching the correct bolts with the right tools is a challenge you're bound to face. In reality, selecting the appropriate bolts and tools
is as crucial as choosing the right pair of
2024/10/02
What is Socket Wrenches & Ratchets? Types, Features & Uses Buying Guide
What is a Socket Wrench and a Socket Set?A socket is an hand tool that can be connected to a handle, with different sizes of drive profile used to grip various screws and nuts. A socket set typically includes various shapes and sizes of drive heads, which
can be swapped on a wrench tool. A high-qua
2024/05/12
Why Reused Screws Are Best Avoided: Optimal Torque Explained
Taiwan has lots of earthquakes but also tall buildings like Taipei 101. When building these skyscrapers, architects use strong bolts to hold the floors together. These bolts are like the building's "joints." But how do we know how tight these bolts should
be?From fast trains to big bridges and deli
2024/04/22
What are the benefits of ergonomics in hand tool design?
What are Ergonomic Hand ToolsHand tools that are "ergonomic" are designed with the user's physical abilities and limitations in mind to lessen body stress and prevent injury. These tools help users do tasks more comfortably with their "hands" and "limbs",
lower the effort needed, and encourage good
2024/01/20
Why the Source of Steel Materials Matters?
In the world of engineering, choosing the right material for hand tools goes beyond a simple selection. It's about matching the tool's purpose with its performance abilities.How much torque can the tool withstand and how hard are the materials it will
encounter? These aren't just technical consider
2023/12/27
Unsung Heroes in Everyday Machinery: The Art of Socket Making
(This chart ASME B107.110-2019 standard.) In a world where bolts and nuts intricately connect the fabric of our daily lives, from the roaring engines of cars to the home appliances, there lies an unsung hero: the socket. Blueprints of Precision: Designing
Dimensions and Shapes The design of a s
2023/09/17
Spline socket pro-tool or just DIY?
Is the spline socket a professional tool or just for home DIY?Is the spline socket just a DIY tool that doesn't need to be super precise tolerance?Or is it a military-grade tool used for things like airplanes, cars, and expensive heavy machines? There's
a military standard for these spline sockets
2023/06/09
How far will universal joint socket bend? Impact VS. Hand
Many customers are curious about the flexibility of the professional universal socket produced by Tien-i. Can it bend at various angles? Can it bend 90 degrees?Typically, customers who purchase universal sockets are experienced maintenance professionals.
They have found it tiring to constantly swit
2021/11/05
2021 A Year of Gratitude
The year is 2021, 18 year since our company established in 2004. Compared with other long-history and international hand tool makers, we, Tien-I, still have a lot to learn and improve. When we started in Taichung industrial area in 2004, we only have
a dozen partners. At that time, we remember viv
2021/09/06
What is right Package for Socket Set and Hand Tool
Some clients like to ask for our suggestion “what kind of package you recommend?”Many questions jump into our sales-team mind, and we will start to collect the answers for them.“What kind of your brand is?”“What is your current sale channel?”“Does your
brand offer warranty? At what range?”“What is
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2021/04/02
Easy-to-Remember: Torque Conversion Table
Many of our professional customers will provide us with product drawings when they ask us to produce hand tools, and most of the drawings will indicate the torque value. However, for non-engineers or inexperienced users, it is not intuitive to judge the
torque from the numerical size, because the t
2020/12/14
Hand Tool Heat-treatment Basic Knowledge
What is the reasonable hardness range?The hardness value of a material is determined using the Rockwell test (which measures the depth of an indenter under a major load as compared to that made by a minor load) and classified according to various Rockwell
scales denoted by the values HRA, HRB, HRC,