PRO 32x screwdriver bits in a box - GROSS professional bit set made of S2 steel
Looking for a top-notch tool that will never let you down? The PRO 32-piece screwdriver bit set in a handy box from the GROSS brand (SKU: 11363) is designed for professional craftsmen, demanding DIYers and anyone who demands uncompromising precision, durability and long service life in their work. This top-notch screwdriver bit set offers the perfect solution for installing and removing a wide range of screws in various industrial and domestic environments.
Each bit in this set is made from premium S2 tool steel, which provides exceptional resistance to wear and torsional loads. Forget about ruined screw heads and rapid bit wear - with a German-made brand and precision manufacturing in Taiwan, you will get every job done faster, safer and more efficiently.
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Why choose the GROSS professional bit set? Main advantages
Whether working in the field or in the workshop, speed and reliability are key. This screwdriver bit set offers a number of benefits that will enhance your working experience:

Premium S2 tool steel: The bits are made of special S2 steel with a high hardness of between 52 and 56 HRC. This ensures an optimal ratio between hardness and elasticity, which prevents the bits from breaking even under heavy loads.
Exceptional variety (32 pieces): The set contains 30 of the most sought-after 25 mm long bits with different profiles (PH, PZ, T, TH, H, SL), covering almost all standard screwdriving needs.
Magnetic quick-change holder: The chrome-plated steel holder is equipped with a strong magnet and a quick-release mechanism, which prevents bits from falling out while working and allows for one-handed changing.
Rotating sleeve for stability: The special rotating sleeve on the handle provides a comfortable and secure grip while rotating, ensuring extremely precise screw guidance without slipping.
Durable and compact case: All attachments are safely stored in a robust case with a metal lock, which protects the tool from shocks and dust and allows for easy transport.

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Technical specifications and kit contents
This professional set of screwdriver bits and adapters is designed to the highest quality standards (German brand, made in Taiwan). Below are all the technical specifications and the exact contents of the set:
Set contents:

30x 25 mm bits made of S2 steel:

Cross (Phillips): PH1, PH2, PH3
Cross (Pozidriv): PZ1, PZ2, PZ3
Torx: T10, T15, T20, T25, T27, T30, T40
Torx with hole (Tamper Resistant): TH10, TH15, TH20, TH25, TH27, TH30, TH40
Allen (Hex): H3, H4, H5, H6
Slotted: SL3, SL4, SL5, SL6


1x Quick-change magnetic adapter (holder): Length 25 mm with 1/4 inch hex connection.
1x Robust storage box: With metal lock and metal belt clip on the side of the box.

Technical data:

SKU: 11363
Brand: GROSS (Germany)
Country of manufacture: Taiwan
Bit material: High-quality S2 tool steel
Steel hardness: 52-56 HRC
Protective coating: Chrome (for corrosion protection)
Clamping size (seat): 1/4 inch (6.3 mm)
Bit type: TR (Torx with hole), TT, SL (flat), PH (cross), PZ (cross), HEX (hex)
Suitcase lock type: Metal lock
Package dimensions: Length: 194 mm | Width: 30 mm | Height: 133 mm
Type of attachments: Single-sided, 25 mm long

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Versatile use for professionals and DIYers
The PRO 32x bit set is an indispensable tool for furniture assembly, drywall work (gypsum board), machine repair, automotive industry and general construction work. Due to the precision machining of the tips, the bits fit perfectly into the screw head, which reduces the load on the tool and prevents slipping (the so-called "cam-out effect").
Thanks to the built-in strong magnet in the front cap of the adapter, the screws will remain firmly attached to the bit, allowing you to work easily with one hand, even in hard-to-reach places or when working overhead.
Watch a demonstration video of the operation and quality of the GROSS tool at the link below:
Presentation video of GROSS tools
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Frequently Asked Questions (FAQ)
What material are the attachments made of and why is this important?
The bits are made of premium S2 tool steel with a high hardness of between 52 and 56 HRC. S2 steel is significantly more resistant to wear and torsional pressure than standard chrome-vanadium (Cr-V) steel, which means that the bits will not bend or break under heavy loads.
Are the bits suitable for use with impact drivers?
Yes, due to the high hardness of S2 steel (52-56 HRC) and quality workmanship, these bits are suitable for use with conventional cordless drills and screwdrivers with a 1/4-inch drive, and they also successfully withstand the loads of lighter impact screwdrivers.
What does the TH marking mean on attachments?
The TH designation stands for "Torx with a hole" (Tamper Resistant Torx). These bits have a hole in the middle of the tip that allows for the tightening of special security screws often found in electronic devices, household appliances and the automotive industry.


Responsible persons:
GROSS - TOOLS WORLD BULGARIA OOD, MALASHEVSKA STR.8, 1202 SOFIA, BULGARIA m.todorov@toolsworld.bg +359 2 423 9806
Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: Germany

Instructions for using the product:
• Before use, check that the attachments are in good condition and undamaged.
• Select the appropriate bit according to the type of screw you are going to drive.
• Attach the attachment to the screw device and tighten it tightly.
• Use a screwdriver to tighten the screw until it is tight.
• After use, clean the attachments and store them in the box.

Useful tips for work:
• Before using the bits, check that they are correctly fitted to the screw device.
• When working with a screw device, use protective gloves to avoid possible injuries.
• Use appropriate protective equipment when working with screws containing hazardous substances.
• After use, clean the attachments and store them in the box to avoid loss or damage.
• Be careful when working with attachments and avoid sudden movements to avoid injury.

Warnings:
• Before use, check that the attachment is not damaged or worn.
• Do not use attachments for purposes for which they are not intended.
• Wear safety glasses when working.
• Keep attachments out of the reach of children.

Same summary

The PRO 32x Screwdriver Bit Set in a Box is best suited for users looking for a universal solution for home or occasional tasks where different profiles and dimensions of bits need to be changed frequently. Due to the wide selection of bits of different sizes included, it can be particularly useful when assembling furniture, assembling equipment or making quick repairs in the household and garage. Although the set covers most basic screwdriving needs, it may not be the best suited for professional use in intensive industrial work or demanding specialized tasks. The special feature of this set is its versatility, so it will be appreciated by anyone who wants a simple and practical tool for several different projects.

Recommendation source: Enaa guides and team experiences.

User view

Typical users of this kit are homeowners, beginners, and those who like to quickly solve small household chores or DIY projects. The kit is a great choice for students, apartment dwellers, or families who need a variety of bits for furniture, electronic device installation, and infrequent but timely maintenance around the home — all without having to search for individual pieces.

Users also often trust the Gross brand's product range, as it is known for its quality tools that are robust and reliable in a variety of conditions.

Why buy at Enaa

At Enaa, you get a wide selection of proven screwdriving kits, professional advice on choosing a tool, and a clear overview of technical features, which makes the decision especially easier for users looking for practical, versatile solutions.

Answers to frequently asked questions

What materials is the PRO 32x bit set most useful for?

The set includes various attachments that can be used for screwing into wood, metal and plastic, as well as most common household needs.

Are the bits also suitable for use with an impact driver?

Some bits can withstand moderate loads, but for intensive or impact use we recommend checking compatibility with the tool manufacturer.

Are there rarer attachment profiles in the set?

The set includes the most commonly used profiles (cross, flat, hexagonal), but for special or less common screws, it is recommended to check suitability before purchase.

What should I do if I need particularly long attachments or a specific dimension?

This set covers basic lengths, for extremely long or particularly specialized bits we recommend purchasing the appropriate product separately from the extended range in the category Screwdriver bits, drill bits and chisels for power tools .

How do I maintain my attachments so they last a long time?

After use, we recommend cleaning and storing the attachments in a dry place to prevent rusting or damage.

Description updated: April 2026