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PH2 x 25 Drywall Phillips Insert Standard Driver Bit for Plasterboard PH225DW

As low as $1.955 /each
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Price for each item Subtotal % savings
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Buy 2 + Buy 2 - 4 $5.00 each $10.00 28.57%
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Buy 10 + Buy 10 - 19 $3.00 each $30.00 16.67%
Buy 20 + Buy 20 - 49 $2.80 each $56.00 6.67%
Buy 50 + Buy 50 - 99 $2.50 each $125.00 10.71%
Buy 100 + Buy 100 + $2.30 each $230.00 8.00%

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SKU: 11D225A

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More Information
System of Measurement Imperial
Product Drywall Driver Bit
Size PH2
Material Alloy Tool Steel
Length (l) 25mm
Series Standard
Impact Rated No
Grade S2
Depth Gauge Yes
Suitable For 6-10 gauge plasterboard / cement fibre screws
Are they Magnetised? Yes
Drive Type Drywall
Hex Size (h) 1/4"
Country of Origin Taiwan
Brand Alpha

Dimensional data is a guide only. Tolerance differences exist between brands and batches

PH2 25mm Drywall Bits are the Phillips PH2 driver bit with an adjustable depth-stop sleeve, sized specifically for plasterboard installation to prevent over-driving through the paper face.

About Drywall Bits

Drywall bits are Phillips PH2 driver bits fitted with a depth-stop sleeve that disengages the bit from the screw once the head sits flush with the plasterboard surface. Prevents over-driving the screw through the plasterboard paper, which would otherwise break the bond between the paper and the gypsum core.


Also known as
Plasterboard Bit · Depth-Stop Bit · Drywall Phillips Bit · Dimpler Bit

Frequently Asked Questions

What is this and where does it fit?
A Phillips PH2 driver bit fitted with an adjustable depth-stop sleeve. The sleeve disengages the bit once the screw head sits flush with the plasterboard surface, preventing over-driving through the paper.

Over-driving a drywall screw breaks the bond between the paper face and the gypsum core, ruining the screw's holding strength. The depth-stop sleeve is the standard fix - set it once and every screw drives to the same controlled depth.

What size do I need?
Drywall and autofeed bits use a PH2 Phillips tip - the same dimension as a standard PH2 bit.

Look at the number printed on the screw head (PH2, PZ2 etc) - that IS the bit size. If no number is visible, trial-fit at the lowest size that engages the full recess without forcing. The bit should slide in by hand and seat at the bottom of the recess with no rotational play.

Why does my bit keep slipping out of the screw (cam-out)?
Three causes in order: (1) the bit is undersized for the recess, (2) the bit is worn at the tip, (3) you're not applying enough axial pressure to keep the bit seated.

Replace worn bits, match sizes exactly, lean into the drive. If you're seeing cam-out on impact-driver work with Phillips, switch to Torx, Pozi or Square drives where the screw allows - those tolerate impact torque much better.

Can I use this on a cordless impact driver?
Use impact-rated (black-oxide finish) bits only. Standard bright-finish bits will snap at the hex shank after 50 to 200 impact blows.

Impact-rated bits have a softer torsion zone in the shank that absorbs each hammer blow as a small twist. Bright-finish bits don't have that and will fail at the chuck end. Check the listing for 'impact rated' or 'torsion zone' before pairing with an impact driver.

What screws does this fit?
PH2 drywall screws - check that your screws are Phillips PH2 (not Pozi). The depth stop is set against the plasterboard face.

Match the bit number to the recess number printed on the screw head. Where the bit and screw drive both have the same designation (PH2 bit, PH2 recess), the fit is correct.


How to Measure

Sizing Drywall bits use a PH2 Phillips tip with an adjustable depth-stop sleeve. Rotate the sleeve to dial in the screw depth so the head sits 0.5mm below the plasterboard paper. The sleeve disengages the bit once the depth is reached, preventing over-driving.

How to measure a driver bit Pick the bit by the PH2 tip + depth-stop sleeve format. The shank is the bit's clamping end - 1/4" hex is the universal standard across cordless drivers, impact drivers and bit holders. The overall length determines reach: 25mm insert for general use, 50mm to 90mm power bits with a torsion zone for impact drivers, 116mm for Hilti autofeed, long-shank Allen keys for recessed socket cap screws. Cross-check the tip dimension against the screw head before driving - an undersized bit cams out and strips the recess.

Measurements Accurate to the relevant standard and should be used as a guide only. They are either hand-measured or taken from suppliers' catalogues. We only stock Alpha for this product; substituting another brand is rare and would always be confirmed with you first.

Magnetism

This product is magnetised. The tip / cup retains a fastener through alignment and engagement, which speeds work in overhead, awkward or one-handed install scenarios. Across the wider Driving range, magnetised bits, holders and nutsetters speed install by holding the fastener on the tip through alignment; non-magnetised tools are preferred for electronics, magnetic-sensor proximity and any work where stray magnetism on the fastener would cause downstream issues. Check the specification table above for the per-SKU value before ordering for magnetism-sensitive applications.

Resources

Technical library PDFs

For full technical data including key product information, range and a CAD drawing, see our Technical PDFs library.

Measurement conversion calculators

Convert between metric and imperial sizes, gauge to mm, decimal to fraction and TPI to pitch with our measurement conversion calculators.

Pricing & Delivery

Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.

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Disclaimer

Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.

Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.

If you see any problems with any of our specifications or you require additional information please contact us.

Delivery

Orders UNDER $30

Weigh less than 500grams

Exceptions: Tools, Kits, Bulky items = Sent as a parcel with tracking

Small orders that fit into the slot of your Letterbox are sent:

FREE with Aust Post Letter delivery with NO TRACKING and delivery between 4-12 business days

Or

Select a Quicker delivery service

  • $7.00 Parcel Delivery 2-7 business days
  • From $12.00 Express Delivery 1-4 business days
  • From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Or

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

Orders OVER $30

Weigh more than 500grams

Included is orders under $30 but weigh more than 500grams or wont fit in the slot of your letterbox

Including Large and Bulky heavy orders are sent:

FREE as a Parcel Delivery WITH TRACKING and delivery between 2-7 business days

Or

Select an Express delivery service

  • From $12.00 Express Delivery 1-4 business days
  • From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days
  •  

Or

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

All delivery dates are estimated and depend on stock availability, delivery location, service chosen, size of order, time of year, when order was placed e.g long weekends or sale periods. 

Further delivery information can be found on our Delivery page

Supplier Details

MPN PH225DW
UPC 9342386021721
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