25mm screwdriver PZ2 bits in the 'Tough Case' compatible holder. This item fits the Dewalt TSTAK c...25mm screwdriver PZ2 bits in the 'Tough Case' compatible holder. This item fits the Dewalt TSTAK caddy. These DeWalt screwdriver bits are designed for professional use. They provide a high-quality screwing action attached to your power drill. The flexible torsion zone on each bit absorbs stress caused by excessive tightening, and so reduces breakages. The extra definition on the driver ends means you can avoid wear and rounding on the heads as you drive your screws home. The extra-thick construction of each bit stops the shuddering that would otherwise disrupt your drill action as you work. These bits have optimised tip geometry with less than 4 degrees movement for precise rotation in use. You can use them with magnetic holders for easy changes and a secure hold in your drill. The 25 pieces come in a hard plastic container to keep them together and well protected during transit and storage.
DEWALT DT71521-QZ PZ2 25mm Standard Tic Tac Display 21 x Packs of 25Free delivery in 1–3 days£354.73Visit shop →
Product Information
Full details
This guide is for professionals and DIY enthusiasts using DeWalt DT71521-QZ screwdriver bits. The key benefit is enhanced screwing action and reduced breakages due to the flexible torsion zone and optimized tip geometry. Note that these bits are designed for use with power drills and may not be suitable for all screw types.
All features
Model Part Number
DT71521-QZ
Brand
DeWalt
Extended Product Information
FAQs
What type of screws are these bits designed for?
These bits are designed for PZ2 screws.
Are these bits compatible with impact drivers?
Yes, although the product description does not explicitly state this, they are designed to withstand high torque applications.
How do I store the bits?
The bits come in a hard plastic container for storage. This case is also TSTAK compatible.
What is the benefit of the flexible torsion zone?
The flexible torsion zone absorbs stress, reducing the likelihood of the bit breaking.
Can I use these bits with a magnetic holder?
Yes, they are compatible with magnetic holders.
How do I clean the bits?
Wipe the bits with a clean cloth to remove debris.
What is the TSTAK compatibility?
The case fits into the DeWalt TSTAK caddy, allowing you to hold all your accessory sets in one place.
What is the warranty on these bits?
The product information does not include warranty information.
Troubleshooting
Bit is stripping the screw head.
Ensure you are using the correct bit size and applying the correct amount of pressure. Check the drill's clutch setting.
Bit is breaking prematurely.
Reduce the torque setting on your drill. Ensure the bit is aligned correctly with the screw head. Check the screw type.
Bit is wobbling during use.
Ensure the bit is properly seated in the drill's chuck or magnetic holder. Check for damage to the bit or drill.
Pros and Cons
Pros
Durable construction ensures a long lifespan.
Optimized tip geometry for precise screwing.
Flexible torsion zone reduces bit breakage.
Compatible with TSTAK caddy for easy storage and transport.
Full-fit head reduces wobble and screw head rounding.
Cons
May not be suitable for all screw types.
Performance depends on the power drill used.
Requires a compatible magnetic holder for some features.
Specific to PZ2 screws, limiting versatility.
Setup, Compatibility & Care
Setup:
Insert the bit into your power drill's chuck or a magnetic holder (if applicable).
Ensure the bit is securely fastened before use.
Compatibility:
Compatible with most power drills.
Designed for use with PZ2 screws.
The case is compatible with the DeWalt TSTAK caddy.
Care:
Inspect the bits regularly for wear and tear.
Clean the bits after use to remove debris.
Store the bits in the provided case to protect them from damage.