1 / 7Bosch IMSDC002 2-Piece HSS Turbo Step Drill Bit Set
Piece Turbo: Bosch IMSDC002 is a two-bit high-speed steel step drill set with hex shanks, described for use in cordless drills and impact drivers. Its stated metalworking range and two included size ranges make it relevant for conduit, electrical knockouts and similar hole-making, though the listed diameter data needs careful interpretation.
At a glance
- Hex shanks are described as impact-driver optimized and drill/driver compatible.
- The listing describes use in cordless drills at high or low speed.
- The manufacturer claims two cutting edges and a balanced double-flute design intended to reduce chatter and vibration.
- The stated application range includes conduit work, electrical knockouts and materials up to 1/8 In.
Reference price: $90.99
Price checked: Nov 14, 2026
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Pros and cons
Pros
- Two step bits offer the two listed size ranges for a range of hole-making tasks.
- The hex shank is specified for impact-driver use as well as drill/driver compatibility.
- The listed use cases include electrical, plumbing and HVAC work.
Technical specifications
13 specifications| Brand | Bosch |
|---|---|
| Model | IMSDC002 |
| Material | High Speed Steel (HSS) |
|---|---|
| Finish | High-speed Steel |
| Flute type | Straight |
| Number of flutes | 2 |
| Point style | Taper Point |
| Cutting diameter | 2 inches |
|---|---|
| Minimum bore diameter | 0.19 inches |
| Cutting angle | 120 degrees |
| Shank type | Hex |
| Surface recommendation | Metal |
| Weight listed | 0.27 g |
|---|
What to know before buying
- The manufacturer describes these bits for materials up to 1/8 In. and claims speed, bit-life and holes-per-charge benefits. Those performance figures are claims, not independently verified measurements.
Listing details to confirm
Listing details are inconsistent: its cutting diameter is stated as 2 inches, while the listed kit ranges are 3/16"-7/8" and 1/4"-7/8" - 1-1/8". Confirm the intended maximum and exact range for each bit before buying. The stated 0.27 g weight is also worth confirming if weight is important.
What’s in the box
Included- 3/16"-7/8" step drill bit (1)
- 1/4"-7/8" - 1-1/8" step drill bit (1)
Who is it for?
A good fit for
- Electrical, plumbing or HVAC workers who need step bits for conduit runs, knockout holes or installations.
- Users seeking hex-shank bits for a compatible impact driver or drill/driver.
- Buyers whose work materials fall within the manufacturer's stated material and thickness guidance.
Less suited to
- Buyers who need a clearly verified maximum hole size without first confirming the conflicting listed ranges.
- Users needing step bits for materials thicker than the stated 1/8 In. limit.

Customer reviews on Amazon
- 5 stars
78% 78% - 4 stars
11% 11% - 3 stars
7% 7% - 2 stars
2% 2% - 1 star
2% 2%
Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller share of lower-star ratings means experiences are not uniformly positive. The figures alone do not establish why customers rated the set as they did. For buyers considering it for repeated metal hole-making, the ratings are only a broad signal and do not verify the manufacturer's cutting, durability or battery-life claims.
Frequently asked questions
Can these bits be used in an impact driver?
The listing describes the hex-shank bits as optimized for impact drivers and compatible with drills and drivers.
What sizes are included?
The contents list names one 3/16"-7/8" bit and one 1/4"-7/8" - 1-1/8" bit. The listing also gives a 2 inches cutting diameter, so confirm the intended size ranges with the selected listing.
What materials and thickness are specified?
The manufacturer names metals and other materials including sheet metal, copper, aluminum, plastic and PVC, and states use in materials up to 1/8 In.
Does the listing confirm performance claims such as longer life?
No independent performance evidence is supplied. The listed speed, bit-life and holes-per-charge figures are manufacturer claims.

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