12 Inch Chainsaw Chain for DEWALT DCCS620 / DCCS620B / DCCS620P1 / DCCS620BR

This 12 inch replacement chainsaw chain is intended for select DEWALT compact cordless saws in the DCCS620 family. It fits the DEWALT DCCS620, DCCS620B, DCCS620P1, and DCCS620BR, and it is a direct replacement style for DEWALT part number DWO1DT612.

If your saw is one of those listed models and it still uses the original 12” bar setup, this is the correct replacement chain style to compare with your current chain and the markings on your guide bar.

Will this chain fit your saw?

The quickest way to verify fit is to confirm your saw model and then match the chain specs shown on your current bar or chain.

Compatible saw models:

• DEWALT DCCS620
• DEWALT DCCS620B
• DEWALT DCCS620P1
• DEWALT DCCS620BR

Replaces:

• DEWALT DWO1DT612

Start with the most obvious check:

• Your guide bar is 12 inches

Then confirm the rest of the chain sizing details on your existing setup:

• Pitch
• Gauge
• Drive-link count

Those three measurements must match your current chain and bar markings for proper fit. Even when the bar length is correct, a chain can still be wrong if the pitch, gauge, or number of drive links does not match. If the printing on your old chain is worn off, check the stamp or label on the guide bar instead, since that usually lists the chain specification needed for that bar.

For these DEWALT DCCS620-series saws, the safest fitment method is simple: confirm you have one of the listed models, confirm the saw is using a 12” bar, and compare the replacement chain style to the markings on the existing bar or chain. If all of those match, you are checking the right replacement.

Replacing the chain

Before working on the saw, remove the battery and make sure the chain brake is engaged if applicable. Wear gloves, since even a dull chain can cut.

1. Remove the battery from your DEWALT saw and place the saw on a stable surface.
2. Loosen the side cover and remove it so you can take the old chain off the bar and drive sprocket.
3. Clean out sawdust and debris around the bar groove, sprocket area, and oil outlet before installing the new chain.
4. Fit the new chain around the drive sprocket and onto the bar, making sure the cutter teeth face the correct cutting direction along the top of the bar.
5. Reinstall the side cover, then adjust chain tension so the chain sits snugly on the bar but can still be pulled around by hand with a gloved hand.
6. Reinstall the battery, add bar-and-chain oil if needed, and test the saw briefly. Recheck tension after the first few cuts, since a new chain can seat in and loosen slightly.

A chain that is too loose can derail. A chain that is too tight can wear the bar, sprocket, and motor system faster, so it is worth taking an extra minute to set tension correctly.

Keeping it sharp

A sharp chain cuts faster, puts less strain on your cordless saw, and helps the DCCS620 series maintain better runtime.

Helpful habits:

• Keep the chain properly oiled and make sure the bar oil reservoir is not run dry.
• Touch up the cutters as soon as cutting starts to feel slow or you see fine dust instead of chips.
• Avoid hitting dirt, rocks, fencing, or the ground, since that can dull a chain almost immediately.

It is also a good idea to check chain tension regularly, especially during the first few uses after installation.

FAQ

Will this fit every 12 inch DEWALT chainsaw?
No. It is specifically intended for the DEWALT DCCS620, DCCS620B, DCCS620P1, and DCCS620BR. You should still confirm the bar markings and your current chain specs.

What does DWO1DT612 mean?
That is the DEWALT replacement part number this chain is designed to replace. If your current chain or manual references DWO1DT612 and your saw is one of the listed DCCS620 models with a 12” bar, this is the correct replacement style to check.