C.S. Osborne 149 Arch Punch 3 Inch
- Material Type: Alloy Steel
- Operation Mode: Manual
- Item Weight: 2 pounds
- Color: Black
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A 3 inch Osborne punch for buyers who already know they need a hole this large, without buyer feedback yet to lean on.
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ASIN: B0042T01UOModel: 149Category: Arch Punches
Overview
Three inches in diameter, the Osborne 149-3 is among the largest punches in the 149 line, meant for wide straps and harness hardware in leather. No rating or review history is attached to this listing.
At 3 inches across this punch is well above Osborne's 2 1/4 inch cutoff for one piece forging, so it is built with the two piece welded barrel used on the line's larger sizes. There is no buyer feedback recorded for this listing yet, so it stands on the brand's construction alone.
- 3 inch cutting diameter
- Two piece welded barrel construction
- One of the largest sizes in Osborne's 149 line
- Model 149-3 from Osborne
Who it's for
Leatherworkers and tradespeople who need a large 3 inch hole for wide straps, harness parts or similar hardware. Not for anyone who needs a range of sizes in one purchase, since this cuts one diameter only.
Pros and cons
- Large 3 inch diameter for wide strap or harness holes
- Two piece welded barrel built for the larger sizes
- From Osborne's dedicated 149 punch line
- No rating or review history on file
- Cuts one size only
- Limited spec detail beyond the diameter
Performance notes
The 149 series cuts by driving a barrel through the material by hand or mallet, and the inside taper is built to let the cut disc slide clear rather than jam the barrel. Because 3 inches is well above Osborne's one piece forging limit, the barrel here is two piece welded construction.
Specifications
| Brand | C.S. Osborne |
|---|---|
| Model | 149 |
| Material Type | Alloy Steel |
| Operation Mode | Manual |
| Item Weight | 2 pounds |
| Color | Black |
| Part Number | 149-3 |
Frequently asked questions
What is the main use for the 149-3 punch?
Cutting a 3 inch round hole through leather or similar material, sized for wide straps or harness hardware.
Is it forged in one piece?
No, at 3 inches it is well above Osborne's 2 1/4 inch forging cutoff, so it uses a two piece welded barrel.
Does it have a rating yet?
No rating or review count is recorded for this listing.