DiveCatalog.com Spearfishing Dive Knife
In stock — ships from Irvine, CA
This item is currently on backorder. Order now to reserve yours, and we will ship it as soon as it is back in stock.
DiveCatalog.com Spearfishing Dive Knife - Black / 4 1/3" (11cm) is backordered and will ship as soon as it is back in stock.
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DiveCatalog.com Spearfishing Dive Knife - Black / 4 1/3" (11cm) is backordered and will ship as soon as it is back in stock.
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Product Information
The DiveCatalog.com Spearfishing Dive Knife is a fixed-blade dive knife with a corrosion-resistant stainless steel blade, offered in three blade lengths of roughly 3 7/8 in (9.8 cm), 4 1/3 in (11 cm) and 5 5/12 in (13.8 cm), all in a low-profile black finish. It is built for spearfishing and general underwater cutting tasks.
Who it is for
This knife is for spearfishers and other divers who need a cutting tool for underwater tasks. The intended jobs are handling fish, cutting line and working through kelp, plus the general underwater cutting that comes up on a dive. Because three blade lengths are offered, a diver can match the knife to their technique and dive kit.
Key details
- Fixed-blade construction for reliable strength under load.
- Corrosion-resistant stainless steel blade that holds up to salt water use.
- Three blade length options: about 9.8 cm, 11 cm and 13.8 cm.
- Secure grip for controlled cutting when handling fish, line and kelp.
- Black finish keeps the profile low.
Compatibility and sizing
Choose by blade length. The 3 7/8 in (9.8 cm) blade is the shortest of the three options, the 4 1/3 in (11 cm) blade is the middle option, and the 5 5/12 in (13.8 cm) blade is the longest of the three options. All three sizes share the same black color option and the same fixed-blade, stainless steel build, so the only decision is length.
DiveCatalog.com is a real dive shop in Irvine, California since 2003, and this knife carries our own DiveCatalog label. If you are not sure which blade length suits your spearfishing setup, call us at 888-701-4017 or start a chat and we will help you choose.
- Fixed-blade dive knife built for spearfishing and general underwater cutting tasks.
- Corrosion-resistant stainless steel blade for salt water use.
- Three blade lengths of approximately 3 7/8 in (9.8 cm), 4 1/3 in (11 cm) and 5 5/12 in (13.8 cm).
- Secure grip for controlled handling of fish, line and kelp.
- Low-profile black finish across all sizes.
- Fixed-blade construction for reliable strength on demanding spearfishing dives.
- Single color option in black, so sizing is the only choice to make.
- Spearfishing and underwater cutting tool for handling fish, line and kelp.
| Brand | DiveCatalog.com |
| Product Type | Spearfishing / dive knife |
| SKU | 3021A-K |
| Blade Material | Corrosion-resistant stainless steel |
| Blade Style | Fixed blade |
| Blade Length Options | ~3 7/8 in (9.8 cm), 4 1/3 in (11 cm), 5 5/12 in (13.8 cm) |
| Color | Black |
| Use | Spearfishing and underwater cutting |
| Variant SKU, 9.8 cm | DC-KNF-DSK-98-BLK |
| Variant SKU, 11 cm | DC-KNF-DSK-110-BLK |
| Variant SKU, 13.8 cm | DC-KNF-DSK-138-BLK |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
What blade lengths does the DiveCatalog.com Spearfishing Dive Knife come in?
Three blade lengths are offered: approximately 3 7/8 in (9.8 cm), 4 1/3 in (11 cm) and 5 5/12 in (13.8 cm). All three share the same fixed-blade stainless steel construction and the same black finish, so you are only choosing length. The 13.8 cm option is the longest blade length offered; the 9.8 cm option is the shortest.
Is this a fixed blade or a folding dive knife?
It is a fixed-blade knife. Fixed-blade construction has no pivot or lock to work loose, which is why it is used for demanding spearfishing tasks and general underwater cutting. The blade is corrosion-resistant stainless steel and the grip is designed for controlled cutting when you are handling fish, line or kelp underwater.
Will the blade rust in salt water?
The blade is corrosion-resistant stainless steel, chosen to hold up to salt water use. As with any dive knife, rinse it with fresh water after every dive and dry it before storage so salt and moisture do not sit on the steel.
What can I cut with this knife?
It is designed for handling fish, cutting line and working through kelp, plus the general underwater cutting tasks that come up on a dive. That makes it a practical cutting tool for spearfishers and divers handling fish, line and kelp.















