1 / 7Bosch T3911SC 1-3/16 in. Carbide SDS-Plus Core Bit
Bosch T3911SC SPEEDCORE is a thin-wall carbide core bit for making holes in masonry, brick, and block. Its SDS-Plus shank is intended for compatible rotary hammers and hammer drills, but the listing specifies rotary mode only. The integrated pilot-bit-and-mandrel design is convenient, while the stated package contains the core bit alone.
At a glance
- The listing describes an ejector hole to assist with removing masonry, brick, and block cores.
- Tungsten carbide teeth are claimed for longevity.
- The pilot bit is described as integrated with the mandrel.
- Listed for SDS-Plus rotary hammers and corded or cordless hammer drills. Use in rotary mode only.
Often bought together
Pros and cons
Pros
- Ejector hole and integrated pilot bit are intended to simplify core removal and setup.
- Carbide construction and the specified masonry, brick, and block use suit through-hole drilling in those materials.
Technical specifications
5 specifications| Brand | Bosch |
|---|---|
| Model | T3911SC |
| Dimensions listed | 1.46 x 1.43 x 5.61 inches |
|---|---|
| Weight listed | 7.04 ounces |
| Material listed | Carbide |
|---|
What to know before buying
Listing details to confirm
The listing says to operate in rotary mode only. Its description says core bits are sold separately and need a center pin, guide plate, and shank for fuller use, while the feature text says the pilot bit is integrated with the mandrel. Confirm whether any additional components are needed for your setup.
What’s in the box
Included- 1 core bit
Who is it for?
A good fit for
- Buyers making through-holes in masonry, brick, or block with a compatible SDS-Plus tool.
- Users who want a core bit described as having an ejector hole and an integrated pilot-bit-and-mandrel arrangement.
Less suited to
- Users seeking a bit for hammer-mode drilling, since the listing instructs rotary-mode use only.
- Buyers needing a complete coring accessory set, unless they have confirmed the other required components are included or already available.
Customer reviews on Amazon
- 5 stars
77% 77% - 4 stars
14% 14% - 3 stars
5% 5% - 2 stars
1% 1% - 1 star
3% 3%
Customer feedback reports clean-looking holes, cutting performance, speed, and durability, including a mention of use in cured concrete. Some feedback also describes the carbide tips as retaining useful life and considers the bit good value. Ease of removing the bit after use is disputed. These are customer impressions rather than performance guarantees. The listed ejector hole is relevant to core removal, but the feedback does not establish that it eliminates removal difficulties.
Positive themes
- Customers report clean-looking holes, cutting performance, speed, and durability.
- Some feedback describes the bit as good value and says carbide tips retained useful life.
Negative themes
- Some customer feedback raises concerns about ease of removing the bit after use.
Mixed feedback
- Customer feedback disagrees on how easily the bit can be removed after use.
Frequently asked questions
Which materials is the Bosch T3911SC listed for?
The listing names masonry, brick, and block. It also describes Bosch coring bits as intended for through-hole drilling in masonry and concrete.
Which drill and mode should I use?
The listing names SDS-Plus rotary hammers and corded or cordless hammer drills, and specifies rotary mode only.
Does the package include a complete coring setup?
The listed contents specify one core bit. The description says a center pin, guide plate, and shank are needed for fuller use, so check what your setup requires.
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