Astro Tool 1894 ONYX 1/2" "THOR Impact Wrench
- Massively powerful 1/2" impact wrench. Even with long impact extensions and universal sockets, the 1894 THOR has the torque to get the job done in a hurry.
- Rated 940 ft-lbs traditional Max Torque (compare to 1,600+ ft-lbs nut-busting or bolt-breakaway). Patented oversized floating air motor and twin-hammer assembly put the weight over your hand for balance and allow for industry leading power at only 6.7" in length
- Includes rocking FWD/REV lever, handle located power adjustment wheel, and two-stage trigger for a power selection without tool adjustment
- For use with 3/8" to 1/2" air hoses & 1/4" or 3/8" NPT fittings (adapter for 1/4" included)
- 4.94lbs, 6.5 CFM continuous use, HI-FLO air fittings recommended on 1/4" & 3/8" fittings!
Estimated shipping
Select a product to estimate shipping.The Astro Tool 1894 ONYX 1/2" "THOR" Impact Wrench is designed with a patented oversized floating air motor and a twin-hammer assembly that puts the weight over your hand for balance, and allows for industry leading power at only 6.7" in length. This impact wrench is rated 940 ft/lb traditiol max torque (compared to 1,600 ft-lbs nut-busting or bolt-breakaway). This tool includes a swinging forward and reverse switch, handle located power adjustment wheel, and a two-stage trigger for a lighter touch without adjusting the tool. Use this impact wrench with 3/8" or 1/4" NPT fittings (adapter for 1/4" included) for a 6.5 CFM continuous use. Max Torque: 940 ft-lbs (1,274 N-m) Free Speed: 7000 rpm Weight: 4.94 lb ( 2.24 Kg ) Length: 6.7"/168 mm Vibration (m/s 2): 5.12 Air Consumption: 6.5 cfm Sound Pressure: 86/97 dBA Air Inlet: 3/8" NPT (1/4" NPT adapter included) Min. Hose Size: 3/8" w/ HI-FLOW fittings
About Us
With over 40 years of importing product into the U.S. Automotive Aftermarket, Astro Pneumatic Tool offers several product categories for one-stop shopping. Our products under our own brand name “ASTRO” include the tool and equipment classics, as well as innovative new items.
Product details

Specifications
| Main Specification | |
|---|---|
| Manufacturer | Astro Tools |
| Unit Count | 16 Ounce |
| Head Style | Round |
| Item Length | 6.7 inches |
| Brand | AP |
| UPC | 745227076383 |
| Number of Items | 1 |
| Operation Mode | Pneumatic |
| Included Components | 1/2" THOR IMPACT |
| Colour | Black |
| Global Trade Identification Number | 00745227076383 |
| Item Weight | 4.9 pounds |
| Technical Details | |
|---|---|
| Material Type | Alloy Steel, Chrome Vanadium Steel |
| Manufacturer Part Number | 1894 |
| End Style | Socket End |
| Item Torque | 1600 ft-lb |
| Jaw Capacity | 0.5 inches |
| Measurement Standard | SAE (Inch) |
| Item details | |
|---|---|
| Model Number | 1894 |
| Item Type Name | Astro Tools 1894 ONYX 1/2" "THOR" Impact Wrench |
| Manufacturer Warranty Description | No_warranty |
| Style | |
|---|---|
| Finish Types | Painted, Polished |
| Others | |
|---|---|
| Product Type | Astro Tools 1894 ONYX 1/2" "THOR" Impact Wrench |
| Package Quantity | 1 |
| Tags | |
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