
Description
1 Ton Twing Block
The Twing block features a spring-loaded side opening mechanism for true one-handed rigging, even while wearing sailing gloves. Black anodized aluminum sideplates are edged with robust bumpers to protect the block, topsides, and deck. The sheave is aluminum rolling on a bearing system shared with Harken's existing 2.3T high-load snatch block.
Features:
- Side opening side plate - Easy to rig and remove from sheet
- Spring loaded button release - Quick one-handed rigging
- Anti-capsize bar - Keeps sheave aligned on sheet
- ULC main bearing - Sheave turns smoothly under extreme loading
- Sideload balls - Carry loads especially when the block is not aligned in light air
- Thimble at pivot base - Use 1:1 or 2:1 up-down control
- Machined aluminum inner sideplates - High strength, low weight
- Soft polyurethane outer side plate bumpers - Protects block and deck
Uses:
- Twing, tweaker control for code zero sheets
- Can be used as a snatch block when combined with a soft shackle
- Spinnaker sheet and guy control
Specifications:
- Sheave Ø (mm): 38.5 mm
- Sheave Ø (in): 1-1/2 in
- Maximum line Ø (mm): 11 mm
- Maximum line Ø (in): .43 in
- Maximum working load (kg): 1000 kg
- Maximum working load (lb): 2205 lb
- Breaking load (kg): 2000 kg
- Breaking load (lb): 4409 lb
Accessories
No accessories listed for this product.
Specifications
| SKU | 3405 |
| UPC | 097653296706 |
| Brand | Harken |
| Category | Sailing |
| Country of Origin | UNITED STATES |
| Weight | 0.32 |
| Dimensions | 4 x 3 x 2 |
| Status | Active |
| Last Synced | 8/17/2026, 1:13:21 AM |
Compliance & Shipping
Product Literature
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Frequently Bought Together
Compare Key Features
| Feature | ![]() Harken 1 Ton Twing Block CURRENT | ![]() Boss Audio MRANT10 AM/FM Dipole Antenna | ![]() Vexilar A.C.E. Transducer Epoxy | ![]() Bluewater 19mm Electronic Deutsch Connector w/5-Wire Pigtal - Nav/Anchor - 1' Lead | ![]() Whale 3/4" Hot Water Heater Drain Valve |
|---|---|---|---|---|---|
| Price | $243.65 | $36.54 | $5.94 | $8.50 | $5.36 |
| Brand | Harken | Boss Audio | Vexilar | Bluewater | Whale Marine |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.32 | 0.2 | 0.05 | 0.5 | 0.1 |
| Dimensions | 4 x 3 x 2 | 5 x 3 x 1 | 7 x 6 x 1 | 8 x 4 x 1 | 3 x 2 x 2 |
| SKU | 3405 | MRANT10 | ACE001 | 9057-4914-212 | 73123 |
| Country | UNITED STATES | CHINA | CHINA | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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