1Most screw heads covered
Torx, Pozidriv, Phillips, slotted and hex bits come in both 25 mm and 50 mm lengths.
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- 99-piece impact driver bit set
Every bit in one case-12%CODEcapitalone12Harfington 99-piece impact driver bit set
99 magnetic S2-steel bits for impact drivers, organized in one case. They also fit regular drills and hand screwdrivers.
12%$35.31
Price with code · Harfington · as of 2026-10-09Code capitalone12 · 12% off
2Nut drivers and adapters
Also inside: 8 mm, 10 mm, 1/4, 5/16 and 3/8 nut drivers, a quick-change adapter, a magnetic bit holder and socket adapters.
3Impact drivers and plain drills
Made for impact drivers, the bits also work in regular drills, electric drills and hand screwdrivers.
Key specs
- Pieces
- 99
- Material
- S2 steel, magnetic
- Bit types
- Torx · PZ · PH · SL · Hex
- Bit lengths
- 25 mm · 50 mm
- Also included
- Nut drivers, bit holder, socket adapters, case
Good pick if
- You use an impact driver
- You run into many different screw types
Think twice if
- You need tiny precision bits for electronics
FAQ
Is there a promo code?
Yes. Enter capitalone12 at Harfington checkout when buying the Harfington 99-piece impact driver bit set for 12% off.
Will they fit a regular drill?
Yes. The page says they work with regular drills, electric drills and hand screwdrivers as well as impact drivers.
Can I return it?
The product page offers 30-day returns from delivery. Returns are free within the US; elsewhere you pay the return shipping.
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