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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
Chicago Pneumatic S821M 1 in Drive Standard Impact Socket, 21mm - CP 8940164324Chicago Pneumatic S821M 1 in Drive Standard Impact Socket, 21mm CP 8940164324 Impact sockets Chrome molybdenum Steel and Phosphate manganese surface finish for extreme wear resistance, easy to read laser etched marking with output size, and model number. Impact sockets are designed to be used with impact and ratchet wrenches in high speed, high torque applications. Structurally, sockets are built to be soft and ductile so that they can easily deform
Chicago Pneumatic S821M 1 in Drive Standard Impact Socket, 21mm - CP 8940164324
Impact sockets Chrome-molybdenum Steel and Phosphate manganese surface finish for extreme wear resistance, easy to read laser etched marking with output size, and model number. Impact sockets are designed to be used with impact and ratchet wrenches in high speed, high torque applications. Structurally, sockets are built to be soft and ductile so that they can easily deform and reform due to the immense stress exerted by the hammering action of an impact wrench. Designed with a cross hole in the handle end, compatible with a retaining pin and ring, or locking pin anvil.
Features:
- Durable design for extreme wear resistance, maximum torque and preventing fastener rounding
- Ensure safety - Designed to prevent occurrence of cracks or breaks, and prolonging the life of the socket
- Provide a perfect fit to powered tools, and therefore will avoid unusual deformation or damages to the tool's square drive
- Tools recommended usage - Powered tools (impact wrenches, nutrunners, ratchet wrenches)
Specifications:
- Length (L): 58mm
- Country of Origin: Taiwan
- Customs Tariff: 82042000
- Diameter Square: 2 in
- Groove Diameter: 5/16 in
- Output Diameter: 1-1/2 in
- Output Drive Size: 21mm
- Socket Shape: Shape A/Standard
- Square Drive: 1 in
- Total Product Weight: 0.49 kg
- Type of the Socket: Standard
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great item and Affordable
Style: BE-157H 1-Pack
Perfectly fit for my corolla
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Breathe Easy!
Style: BE-728H 1-Pack
Ladies and gentlemen, buckle up, because we're about to embark on a whirlwind adventure of cleaner air and contortionist-worthy installation feats with the Spearhead HEPA Breathe Easy Cabin Filter!
First off, let's talk about installation. If you're someone who loves a good yoga session or considers themselves a Cirque du Soleil dropout, this is the filter for you. The instructions are so clear and helpful that even a goldfish could follow them. However, be prepared to twist and turn in ways you didn't know your body could. And let me tell you, I'm not in the best of shape. I discovered muscles I never knew I had and positions that would make a pretzel jealous. But don't worry, it's all worth it.
Once installed, my car’s air quality shot up faster than a rocket to Mars. And although my car is old and doesn't have any fancy AI, it felt like it was saying, "Ahh, finally, some quality air!" The air was so crisp and pure, I half expected to see little cartoon birds chirping around my head. And let me emphasize this: the product quality is top-notch. It not only works great but looks good too.
I purchased this gem because my wife has bad allergies, and so far, it's been a game-changer. She hasn't sneezed once, and the car doesn't smell as musty with the air conditioning on. It's like we've been transported to a fresh, alpine air paradise every time we drive.
In summary, the Spearhead HEPA Breathe Easy Cabin Filter is a game-changer. It's as easy to install as putting on socks—if putting on socks required you to become a human origami. But trust me, once it's in place, your lungs will thank you, and your car will feel like it's breathing the fresh, alpine air of the Swiss Alps. Five stars, and a standing ovation from my now incredibly limber body!
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Reviewed in the United States on July 10, 2024
★★★★★ 5
Works a lot better than the previous one.
Style: BE-775H 1-Pack
Great product at a great price. It seemed to fit almost perfect with out having to crunch it in. Highly recommend.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
Great Cabin Filter Upgrade
Style: BE-729H 1-Pack, Style: BE-729H 1-Pack
I recently replaced my old cabin air filter with this one, and the difference was noticeable right away. Installation was quick and straightforward took less than 10 minutes with no special tools needed.
What I appreciate most is the air quality improvement. The airflow feels stronger, and there’s a clear reduction in dust, odors, and outside pollution entering the cabin.
If you’re looking for an easy, affordable upgrade that actually makes a difference in everyday driving comfort, this cabin filter is definitely worth it.
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Reviewed in the United States on November 19, 2025
★★★★★ 5
Excellent Air filter - Easy installation.
Style: BE-743 1-Pack
Excellent AC and Heater Cabinet odor defense air filter. I noticed immediately the smell coming out of the vents was fresher and the musty smell that was coming from the vents was crisper and cleaner. Very easy installation that you can do yourself and don’t need to pay a shop to do. The price is one of the best online and coms in quickly. It’s very sturdy, filter quality is excellent and it definitely improves the air quality and flow in your car. Fits perfectly like any OEM filter, this is a great buy for the price of an installation that will take you Les then 10 minutes to do yourself.
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Reviewed in the United States on May 21, 2026