DEWALT DW2166 45-Piece Driver Bits Review: The Storage Fit Matters
Worth it, with a storage check

Worth it or skip it?
Worth it if
- You want a general-purpose 45-piece HSS bit set whose individual slots can nest inside Small or Medium ToughCase+ storage.
Skip it if
- You need Large ToughCase+ compatibility or a complete itemized list of all 45 pieces before buying.
Key facts
ToughCase+ fit statedThe bit case is sized to fit inside Small and Medium ToughCase+ units; those units are sold separately.
Named pieces in listingThe listing names 8 double-ended 55mm bits and 2 power bits; the remaining pieces are not individually itemized.
A sensible set with two checks
Choose the DW2166 if you want a general-purpose 45-piece HSS collection with rearrangeable storage and Small or Medium ToughCase+ nesting. Confirm the case size first, and expect only part of the contents to be itemized.
Buy on AmazonA case that stays orderly
You open the clear-lid case and see each bit sitting in its own slot, not scattered across a drawer.
The storage design
The patented bit-bar uses individual, rearrangeable slots, while the clear lid supports quick inventory and the clip latch keeps the case shut. It is built as Small Bulk Storage for Small and Medium DEWALT ToughCase+ units, sold separately.
So the useful choice is organized storage that nests in the right ToughCase+ size—not a promise that every case will fit.
Before you choose
Does this bit case fit inside DEWALT ToughCase+ storage?
Yes. It is built as “Small Bulk Storage” for Small and Medium ToughCase+ units, sold separately. Large ToughCase+ fit is not mentioned.
What exactly is in the 45-piece set?
The listing names 8 double-ended 55mm bits and 2 power bits—PH2 and SL2. The other pieces in the 45 total are not individually itemized.
What are the bits made of and what can they drive into?
They are High Speed Steel (HSS) with straight shanks, recommended for drywall, metal, plastic, and wood surfaces.
Full spec sheet
| Brand Name | DEWALT |
|---|---|
| Model | DW2166 |
| Set Name | 45-Piece |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Part Number | DW2166 |
| Number of Pieces | 45 |
| Included Components | Dewalt - DW2166 |
| Item Type Name | Screwdriver Bit Set |
| Item Weight | 1.3 pounds |
| Item Dimensions | 8.9 x 1.6 x 8.9 inches |
| Material Type | High Speed Steel (HSS) |
| Finish Types | Painted |
| Shank Type | Straight |
| Surface Recommendation | Drywall, Metal, Plastic, Wood |
| Tool Flute Type | Straight |
| Number of Flutes | 2 |
| Material | High Speed Steel (HSS) |
| Finish Type | Painted |
| Brand | DEWALT |
| Item dimensions L x W x H | 8.9 x 1.6 x 8.9 inches |
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