C.S. Osborne / Rivet, Snap & Eyelet Setters
C.S. Osborne 170-9 No. 9 Copper-Rivet Setter
The exact No.170-9 model has a maker-listed 0.171 in setter hole for its No.9 copper-rivet row, with a 0.161 in rivet-shank figure.

CHOOSE THE TOOL FOR YOUR WORK
Match the exact rivet row and its two different diameters
Choose the Osborne 170-9 by its exact model and the rivet it is intended to set, rather than a generic number-nine label. The manufacturer’s row identifies copper rivet size 9, a 0.171 in setter-hole diameter and a 0.161 in rivet-shank diameter. The larger tool opening and the rivet shank are different parts of the fit; do not substitute one dimension for the other.
The No.170 family is described as forged steel with a polished face and hardened working end. The Amazon model is 170-9, matching the specific manufacturer row. This is a setter tool, not an itemized supply of rivets, burrs, a hammer or a press system.
Compare the DGOL only if its own stated No.9/No.12 hardware range matches your rivets; sharing a nominal size label does not establish universal compatibility between families. The maker lists 5 oz while the Amazon entry says 3.99 oz, so confirm weight if it matters to your setup. No exact striking procedure or maintenance method is supplied here.
MODEL DETAILS
Specifications & included parts
| Detail | Product details |
|---|---|
| Exact model | 170-9 |
| Maker rivet row | Copper rivet size 9 |
| Maker setter-hole diameter | 0.171 in |
| Maker rivet-shank diameter | 0.161 in |
| No.170 family material | Forged steel |
| No.170 family working end | Hardened |
| No.170 family face | Polished |
| Offer role | Setter tool; hardware supply not itemized |
Check the chosen weight, color and included parts on Amazon before ordering.
Where this model is useful
- The exact manufacturer row gives tool-hole and rivet-shank fit information.
- A hardened working end and polished face distinguish the setter’s construction.
Trade-offs to check
- No cross-family No.9 compatibility or hardware supply is established.
- Tool weight differs between the maker and Amazon; no one value is adopted.
What to check before choosing
Keep hole and shank separate
Use 0.171 in for the setter hole and 0.161 in for the maker’s rivet shank.
Match the exact hardware family
Do not assume every rivet called No.9 belongs to this maker row.
Your questions about this product
Are 0.171 and 0.161 in competing tool-hole sizes?
No. The maker lists a 0.171 in setter hole and a 0.161 in rivet shank for the 170-9 row.
Are rivets and burrs included?
They are not itemized as supplied; this is the setter-tool offer.
Can I use any No.9 fastener?
Universal compatibility is not established. Match the exact rivet family and dimensions.
Other options to consider
About this product information
Exact-ASIN complete available text, bullets, specifications and current variant compared; original buying advice, no physical trial.
Selected Amazon listing ↗ · Listing checked 2026-11-06 · Information reviewed 2026-11-06
- Manufacturer exact model 170-9 row and No.170 family construction ↗ · checked 2026-11-06
Confirm the current variation and supplied parts on Amazon before ordering.



