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In everyday assembly and maintenance work, a stripped screw is one of the most common and frustrating problems. When the screwdriver slips inside the screw head, it not only slows down efficiency but can also damage the screw or the workpiece.
To avoid this issue, it’s essential to choose the right screwdriver. This article will explain the main causes of slipping and how to select the proper screwdriver for each application.

Mismatched bit size
The most frequent cause of slipping is using a bit that doesn’t perfectly fit the screw head. Whether it’s Phillips, slotted, or Torx, a bit that’s too small or too large will reduce surface contact and cause stripping.
Worn-out screwdriver tip
After long-term use, screwdriver tips can become rounded or damaged, making it hard to transfer torque efficiently. In assembly lines, using worn bits often leads to repeated stripping across multiple screws.
Incorrect torque or angle
If the screwdriver is not aligned with the screw axis or the applied torque is too high, the screw slot may deform or strip easily.
Low-quality or soft screws
Screws made from softer materials such as low-carbon steel or plastic can strip easily under high torque. In this case, a torque-controlled screwdriver is highly recommended.
Identify the screw type and size
Common head types include Phillips (PH), Slotted (SL), Hex, and Torx.
Tip: Always choose a bit that matches the screw head exactly. For precision work, use a caliper to confirm dimensions.
Pay attention to the tip material and coating
High-quality screwdrivers are usually made of S2 alloy steel or Cr-V (chromium-vanadium) steel, offering excellent hardness and wear resistance. Nickel-plated or phosphate-coated tips further enhance anti-rust performance and grip.
Choose the right handle design
Straight handle: ideal for fine assembly and electronics.
T-handle: allows greater torque application.
Insulated handle: essential for electrical work.
A well-designed, non-slip grip can effectively reduce the risk of slipping.
For batch assembly, electric screwdrivers with adjustable torque are ideal to prevent overtightening.
In confined spaces, consider short-handle or ratcheting screwdrivers for easier access.
For industrial users and distributors, screwdriver selection directly impacts work efficiency, precision, and long-term reliability. A high-quality screwdriver ensures consistent torque delivery, perfect bit fit, and long service life—making it a vital tool in mechanical assembly, appliance production, and repair work.
As a professional hand tool manufacturer, we offer a complete range of screwdrivers with various tip types, lengths, and handle designs.
Our products support OEM and bulk customization, ensuring quality and performance that meet global industry standards.
If you are looking for a reliable screwdriver supplier, contact us anytime for cooperation or samples.
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