Stock Level
Description
The KMR CN40-G643E is the latest evolution of the original 3840 gas nailer – designed for professional use in construction where speed, reliability, and precision are essential. Built for mounting electrical installations, sanitary fittings, ceiling hangers, and more, it delivers consistent performance on both concrete and steel substrates.
Key Features
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Versatile Applications – Ideal for fixing electrical components, sanitary pipework, and suspended ceiling systems to concrete or metal.
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High Power Efficiency – Up to 1,100 shots per gas canister and as many as 5,000 shots per battery charge.
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Adjustable Depth Control – Achieve precise fastening with consistent penetration.
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Compact & Lightweight – Weighing just 3.8 kg, the slim design offers easy handling without compromising on power.
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Durable Magazine – Rear-loading system with 40 nail capacity for uninterrupted workflow.
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Engineered for Comfort & Safety – Single-shot trigger, vibration level of only 3.67 m/s², and optimised noise control (97.4 dB pressure level).
Technical Specifications
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Nail Type: CN Steel Nails
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Nail Length Range: 15–40 mm
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Magazine Capacity: 40 nails
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Dimensions (H/L): 375 / 460 mm
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Weight: 3.8 kg
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Gas Canister: KMR 40 g / 80 ml
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Battery: NiMh, 6V / 1650 mAh
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Sound Pressure (LpA): 97.4 dB (A)
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Sound Power (LwA): 100.8 dB (A)
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Vibration: 3.67 m/s²
Why Choose the CN40-G643E?
This nailer is built for professional reliability with the power to handle demanding site conditions. Its adjustable depth setting, ergonomic handling, and outstanding capacity make it a trusted tool for tradespeople who need a robust and efficient fastening solution.
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Delivery info...
- Within 24 hours of your ‘Despatch’ notification from United Fixings. All orders will be sent with ‘Next Day’ Couriers - you should receive your parcel the next working day following your despatch notification.
- Orders made by 2pm will be despatched from United Fixings Tiverton, Exeter & Stoke on the same day
- Orders made between 2pm and midnight will be despatched the following working day*
*Orders fulfilled from our National Warehouse may take an additional working day to be delivered.
As soon as we have packed your order and booked it in with our couriers, you will receive an email with your tracking information.
Once you have your tracking information, our courier should attempt delivery the next working day.
Please note that if for any reason the courier is unable to fulfil this next day service, it is beyond our control as a retailer.
Items despatched from Tiverton & Exeter use DPD & DX as our courier partners. Occasionally some smaller items may be sent by Royal Mail Tracked service.
- FREE delivery on orders over £75!
- £6.25 on orders under £75
You can also collect your order from either store by choosing the collect option at checkout - there is no delivery charge for this option!
Yes! And there is no charge for collecting in store!
Pick your store for collection on checkout - please ensure you wait until you receive your notification from United Fixings to confirm your order has been picked and is ready to be collected before coming in!
Please note that items from our National Warehouse may take a full working day to be ready for collection.
Any questions?
If we still haven't answered your question, you can contact us below and we will get back to you as soon as possible.