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National Nail Marksman T-15 Driver Bits for Grooved Boards, 3 in., 2-Pack
Regular price $7.79Orders start at $399 — combine any items to reach the minimum. Learn more
National Nail Marksman T-15 Driver Bits for Grooved Boards, 3 in., 2-Pack
This 2-pack contains 3 in. National Nail Marksman T-15 driver bits made for driving fasteners in grooved deck boards. Each bit engages T-15 star-drive recesses and reaches into grooved edges. Pair with a standard drill or driver for hidden-fastener deck installs.
Key Features:
- Grooved board fit: Sized for driving T-15 fasteners in grooved deck board edges.
- 3-inch length: Each bit is 3 in. long for reach and access in grooved profiles.
- Two per pack: Sell unit is a 2-pack so a spare bit is always on hand.
- T-15 star drive: Matches T-15 star-drive recess screws used in hidden-fastener systems.
- Deck installation: Built for deck board fastening applications.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | National Nail |
| Sell unit | 1 pack, 2 bits |
| Product line | Marksman driver bits |
| Drive size | T-15 |
| Length | 3 in. |
| Board type | Grooved boards |
| Pack quantity | 2 bits per pack |
| Intended use | Driving T-15 star-drive fasteners in grooved deck boards |
Fit and Compatibility:
Use with T-15 star-drive recess deck screws for grooved-edge boards, such as National Nail Marksman fasteners for grooved boards. Requires a drill or driver; a magnetic bit holder is recommended.
Frequently Asked Questions (FAQ):
Q: What comes in the pack?
A: One sell unit contains two 3 in. T-15 driver bits.
Q: Which boards do these fit?
A: They are intended for grooved-edge deck boards, not square-edge boards.
Q: Do these work in any drill?
A: Yes, any drill or driver with the appropriate bit holder can accept the bit.
Q: Is there a square-board version?
A: Yes, National Nail sells a separate Marksman T-15 bit version for square boards.
Q: How long do bits last?
A: Bit life varies with use; a 2-pack ensures a replacement is ready when the first bit wears.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Hidden-fastener installs in grooved boards often require a bit with extra reach, so the 3 in. length helps clear board profiles and ribbing. Match the T-15 recess exactly to reduce cam-out and stripping. Keep the grooved- and square-board bit versions separate on the truck to avoid mix-ups.
Wear safety glasses when operating power tools, and keep hands clear of the rotating bit.
Get the National Nail Marksman T-15 driver bits for grooved boards and finish your hidden-fastener deck without interruption.
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