Firecore FS21475 Air Chisel Tile Scaling Bit 4 Inch
- Size: 4-inch Air Chisel
- Blade Edge: Bevel
- Blade Material: Alloy Steel
- Handle Material: Alloy Steel
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A steel air chisel bit sized for a pneumatic hammer, worth confirming against your hammer's shank size before ordering.
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ASIN: B09SGCPB8DModel: FS21475Category: Chisels
Overview
The Firecore FS21475 is a 4 inch alloy steel chisel built to be chucked into a pneumatic air hammer, not used as a standalone hand chisel.
Its listing describes it plainly as a 4-inch air chisel, with both the working end and shank made of alloy steel, so it functions as an attachment for an air hammer you already own rather than a complete tool on its own.
- 4 inch alloy steel air chisel bit
- Built for use with a pneumatic air hammer
- Compact length suits tight spaces
- All alloy steel construction
Who it's for
Owners of a pneumatic air hammer who need a 4 inch alloy steel chisel bit for tasks like cutting body panels or chiseling rusted bolts and rivets. Not for anyone wanting a standalone hand chisel struck with a mallet.
Pros and cons
- Alloy steel built for repeated pneumatic impact
- Compact 4 inch length fits tight spaces
- Shank fitment is not detailed, so check compatibility first
- Not usable without a separate air hammer tool
Performance notes
Alloy steel gives the bit the hardness to withstand repeated pneumatic impacts without deforming at the tip, and its 4 inch length is short enough for tight spaces like wheel wells or under a dashboard, though checking shank fit against your air hammer first is worthwhile.
Specifications
| Brand | Firecore |
|---|---|
| Model | FS21475 |
| Size | 4-inch Air Chisel |
| Blade Edge | Bevel |
| Blade Material | Alloy Steel |
| Handle Material | Alloy Steel |
| Item Dimensions L X W | 7.5 × 4 inches |
Frequently asked questions
Does the FS21475 come with an air hammer?
No, it is listed as a 4 inch alloy steel chisel meant to be used in a separate pneumatic air hammer.
What is it made of?
Alloy steel, both the working end and shank per the listed spec.
What size is it?
4 inches, described in the listing as a 4-inch air chisel.