MAXTEC 25mm Impact Screwdriver Bits - PH2 - Pack of 25

MAXTEC 25mm Impact Screwdriver Bits

The MAXTEC 25mm Impact Screwdriver Bits are PH2 Phillips drive bits manufactured specifically for use with impact drivers. Supplied in a pack of 25, they are suited to production screwdriving tasks where bits are consumed regularly and having spares to hand is essential for uninterrupted work. The 25mm length is the standard size for use in magnetic bit holders and direct ¼" hex chucks, covering the vast majority of general screwdriving applications on site and in trade use.

Impact refers to the way the tool delivers force.

A standard drill or screwdriver applies continuous rotational force to drive a screw. Smooth and consistent, but limited in torque.

An impact driver works differently. It delivers rotation in short, sharp, high-force bursts combined with a hammering action along the rotational axis. Each burst is called an impact. This is what gives impact drivers their ability to drive screws faster and with far more torque than a standard drill.

Why this matters for screwdriver bits:

Impact-rated bits are manufactured from tougher steel and often have a torsion zone built into the shank that flexes slightly under each impact burst, absorbing the force rather than transferring it all to the tip.

In plain terms:

If you use a standard bit in an impact driver, it will wear out faster and snap more often. An impact-rated bit is built to survive the same conditions for much longer.

Why Choose the MAXTEC 25mm Impact Screwdriver Bits?

• Impact rated: These bits are designed specifically for impact driver use. Standard non-impact bits used in an impact driver wear faster and are more prone to snapping under the high-torque burst forces an impact driver generates. Impact-rated bits are manufactured to handle these forces consistently across a greater number of driving cycles.

• PH2 Phillips drive: PH2 is the most widely used screwdriver bit size in UK construction and trades work, covering the majority of general-purpose screws used in timber, drywall, and light steel applications.

• 25mm standard length: The standard length for use in magnetic bit holders and ¼" hex chucks. Compatible with the CMT Magnetic Bit Holder (BMBHSTD) and Magnetic Quick-Release Bit Holder (BMBHQS).

• Pack of 25: Impact bits are a consumable. Having 25 in hand means the job is not interrupted by a worn or broken bit. The tub container keeps the pack organised and protects unused bits from damage.

• MAXTEC brand: Part of the CMT Group MAXTEC range of power tool accessories, manufactured for trade and construction use.

What's Included

• 25 x MAXTEC 25mm PH2 Phillips impact screwdriver bits in a tub container

 Specifications

Compatibility

Who Is This For?

These bits are for carpenters, joiners, drywall fixers, general contractors, and site operatives who use an impact driver as their primary screwdriving tool and work regularly with PH2 Phillips head screws. The pack of 25 is suited to operatives who go through bits at volume and need a reliable supply to hand throughout the working day.

Typical Applications

• Driving PH2 Phillips head screws in timber framing, first and second fix carpentry

• Drywall and plasterboard fixing with PH2 screws

• General site assembly and fixing work using PH2 fasteners

• High-volume screwdriving where bit replacement during the shift is routine

• Any application where an impact driver and PH2 Phillips screws are used together

How to Use

1. Insert the ¼" hex shank of the bit into the magnetic bit holder or directly into the ¼" hex chuck of the impact driver.

2. Ensure the bit is fully seated and retained before operating the tool.

3. Position the bit tip in the PH2 screw head recess and apply light forward pressure to maintain contact during driving.

4. Drive to the required depth. Reduce speed as the screw approaches full depth to avoid cam-out or overdriving.

5. To change a bit, pull it free from the magnetic holder or release it using the quick-release collar if using the BMBHQS holder.

6. Inspect the bit tip before reuse. A worn or damaged tip should be replaced immediately.

Safety

• Always ensure the impact driver is switched off before fitting or changing bits.

• Do not use a worn or damaged bit. A worn tip will cam out of the screw head under impact force, potentially damaging the fastener or the work surface.

• Wear appropriate eye protection during all impact driving operations.

• Do not use these bits in applications requiring a different drive type. Using a PH2 bit in a Pozidrive screw or vice versa will damage the bit and the fastener head.

Maintenance

• Store unused bits in the supplied tub container to protect the tips from damage.

• Inspect bit tips regularly during use. Replace bits showing signs of wear, rounding, or tip damage.

• Keep the tub container closed when not in use to prevent bits from being contaminated with swarf or debris.

• Store in a dry location to prevent corrosion on the bit shanks.

Frequently Asked Questions

Q: What does PH2 mean?

 A: PH2 refers to Phillips drive size number 2. It is the most common screwdriver bit size used in UK construction and trade work, covering the majority of general-purpose screws used in timber, drywall, and light steel applications. PH1 is smaller and PH3 is larger.

Q: What is the difference between impact bits and standard screwdriver bits?

 A: Standard screwdriver bits are not designed to handle the high-torque burst forces that an impact driver produces. Under repeated impact use, standard bits wear faster and are more prone to snapping. Impact-rated bits are manufactured specifically to absorb and withstand these forces, giving longer service life in impact driver applications.

Q: Will these bits work in a standard drill or screwdriver as well as an impact driver?

A: Yes. These bits have a standard ¼" hex shank and will fit any tool with a ¼" hex chuck, including standard drills and screwdrivers. They are rated for impact use but work equally well in non-impact tools.

Q: Are these bits compatible with the CMT Magnetic Bit Holders?

 A: Yes. The 25mm length and ¼" hex shank are compatible with both the CMT Magnetic Bit Holder (BMBHSTD) and the CMT Magnetic Quick-Release Bit Holder (BMBHQS), both available from cmt.co.uk.

Q: Why buy a pack of 25 rather than a smaller pack?

 A: Impact bits are a consumable. On a busy site or during a high-volume fixing task, a single bit can wear to the point of replacement within a working session. Having 25 bits in hand means the job is not interrupted by a worn bit, and the tub container keeps spares organised and protected until needed.

Q: Do you also stock PZ2 Pozidrive impact bits?

 A: Yes. The MAXTEC 25mm Impact Screwdriver Bits are also available in PZ2 Pozidrive (FF110026), also in a pack of 25. Both are available from cmt.co.uk.

Q: Why buy MAXTEC Impact Screwdriver Bits from CMT Group?

 A: CMT Group has supplied construction and trade professionals across the UK since 2010. The MAXTEC 25mm Impact Screwdriver Bits are held in stock for next working day delivery on orders placed online by 7pm. Trade account holders benefit from agreed contract pricing, full order visibility, and live delivery tracking through our EDGE procurement portal. Order online at cmt.co.uk.