Sockets, Nut Setters & Driver Bits
The driving end of every fastener you install
Every fastener failure that looks like a bad screw is worth checking against the bit first. A rounded recess, a chewed hex head, a stripped drive — these are usually the tool wearing out, not the fastener. Bits are consumables, and treating them as such is one of the cheapest quality improvements available on a site.
Stocked in Bengaluru · Special sizes made to order · Bulk rates available
Available sizes
Sizes stocked
- Nut setters — 6, 7, 8, 10, 11, 12, 13 mm
- Nut setter lengths — 45, 65, 100 mm
- Phillips — PH1, PH2, PH3
- Pozidriv — PZ1, PZ2, PZ3
- Torx — T10 to T40
- Bit lengths — 25, 50, 90, 150 mm
8 mm is the size for most of our roofing screws. Tell us which screws you are ordering and we will send the matching nut setter.
Available sizes for Sockets, Nut Setters & Driver Bits: Nut setters — 6, 7, 8, 10, 11, 12, 13 mm, Nut setter lengths — 45, 65, 100 mm, Phillips — PH1, PH2, PH3, Pozidriv — PZ1, PZ2, PZ3, Torx — T10 to T40, Bit lengths — 25, 50, 90, 150 mm.
What it is used for
Use the right nut setter or bit and your screws go in cleanly. Use a worn one and you ruin the screw heads.
Roofing screws
8 mm magnetic nut setters for hex head self drilling screws.
Board fixing
PH2 bits with a depth stop for consistent drywall work.
Impact drivers
Impact-rated bits that flex instead of shattering.
Bits are consumables
Replace them as soon as the tip starts rounding off.
Overview
We stock magnetic nut setters from 6 mm to 13 mm — with 8 mm covering the bulk of Indian roofing screws — plus Phillips, Pozidriv, Torx and square driver bits in standard and impact-rated grades, in 25 mm, 50 mm and 150 mm lengths.
Because we supply the screws too, we can send bits that actually match what you are driving, rather than a generic assortment where half the sizes are never used.
Strong magnetic retention
Holds the screw square while you position it — the difference between one-handed work at height and dropped fasteners.
Impact-rated grades
S2 and torsion-zone bits absorb the shock of impact drivers instead of shattering, which standard bits will do quickly.
Sizes matched to your screws
We supply the bits for the fasteners you actually order, not a boxed assortment with the useful sizes missing.
Depth-stop options
Adjustable depth-stop nut setters and nose cones for consistent seating on roofing and board work.
Specifications
Standard stock configuration. Non-standard sizes, drives and coatings are made to order — ask us.
| Nut setter sizes | 6, 7, 8, 10, 11, 12, 13 mm and 5/16", 3/8" |
|---|---|
| Nut setter length | 45 mm, 65 mm, 100 mm |
| Bit types | Phillips PH1/PH2/PH3, Pozidriv PZ1/PZ2/PZ3, Torx T10–T40, square |
| Bit lengths | 25 mm, 50 mm, 90 mm, 150 mm |
| Material | S2 alloy steel; chrome vanadium on standard grades |
| Shank | 1/4" hex, quick-change compatible |
| Impact rated | Available with torsion zone for impact drivers |
| Magnetic | Rare-earth magnet insert in nut setters |
| Depth stop | Adjustable versions available |
| Packing | Singles, 10 pc packs, 25 pc bulk |
Technical documentation
Exact specifications vary between manufacturers and production batches. Tell us the job and we will confirm the specification before despatch, and send the manufacturer’s datasheet or test certificate for the batch if you need it for a submittal.
Section 1 — Installation
How to use nut setters and driver bits
Two habits account for nearly all bit life: keeping the bit fully seated, and replacing it before it is worn out rather than after.
Drawing made for Modern Fastening Solution. Shown for guidance — check against your own job before ordering.
- 1
Match the bit exactly to the recess
PH2 in a PH2 recess, PZ2 in a PZ2 recess. Phillips and Pozidriv look similar and are not interchangeable — using one in the other cams out and destroys both.
- 2
Seat the bit fully before applying torque
Push the bit right into the recess, then start driving. Torque applied to a partially seated bit rounds the recess on the first turn.
- 3
Keep the driver in line
Any angle concentrates load on one flank of the recess. Square-on, every time — this matters most with magnetic nut setters where the screw is being held out on the end.
- 4
Use impact-rated bits in impact drivers
Standard bits shatter under impact loading. Impact-rated bits have a torsion zone that flexes and absorbs the shock.
- 5
Replace at the first sign of rounding
A worn bit does not fail gracefully — it starts damaging every fastener it touches. Inspect the tip regularly and bin it early.
Section 2 — Applications
Where nut setters and driver bits are used
Every trade that drives a screw — the size and type change, the principle does not.
Roofing and cladding
Driving hex head roofing screws all day without rounding the heads.
Drywall and ceilings
Phillips bits for board on stud framing and suspended ceilings.
Joinery and furniture
Pozi and Torx bits for chipboard and cabinet assembly.
Steel fabrication
Self drilling screws into sections and framing in the workshop.
Electrical and MEP
Panel, conduit and support fixing on services installations.
Maintenance
A worn bit costs more in rounded heads than a new one costs to buy.
Sockets & Bits — questions we get asked
What size nut setter do I need for roofing screws?
8 mm covers most Indian hex-head self drilling roofing screws. Larger M6.3 screws with bigger heads may need 10 mm. If you tell us which screws you are ordering, we will send the matching size.
What is the difference between Phillips and Pozidriv?
Pozidriv has four extra shallow ribs between the main slots. It is designed to resist cam-out, so it holds torque far better on long runs. They are not interchangeable — a PH2 bit in a PZ2 recess will slip and round the head.
Why do my driver bits keep breaking in an impact driver?
Almost certainly because they are standard bits. Impact drivers apply rapid torque pulses that shatter hardened bits. Impact-rated bits have a softer torsion zone designed to flex under those pulses.
How long should a driver bit last?
Anywhere from a few hundred to a few thousand screws, depending on material, torque and how square it is kept. The useful rule is to change it at the first sign of tip rounding rather than counting screws.
Request a price for Sockets & Bits
Send us the sizes and quantities and we will come back with a price, usually the same working day. Not sure of the size? Describe the job and we will work it out.
Often ordered with this
Self Drilling Screws
Self Drilling Hex Head Screws — Zinc Plated
SDS hex screws / roofing screws — the standard screw for roofing and cladding
View specifications
Drywall & Wood Screws
Drywall Screw — Black
The standard indoor drywall screw
View specifications
Accessories
Rivet Guns
Hand and lazy-tong tools for setting blind rivets
View specifications
Drywall & Wood Screws
Chipboard Screws
Pulls timber and board tightly together
View specificationsTell us what you need
Send us the sizes and quantities, a photo, or just a description of the job. Most quotations go out the same working day.
Monday – Saturday, 9:30 AM – 7:00 PM · Delivery across Bengaluru, Karnataka and all India