Which is better for drilling into concrete?

The 3697-22. It is a hammer drill with a masonry mode; the 2691-22 drill has no hammer function.

Which has more power?

The 3697-22. Its impact driver rates 2,000 in-lbs versus 1,700, and its hammer drill outclasses the 550 in-lbs compact drill.

Which is better for tight spaces?

The 2691-22. Its drill is 5.7 inches long and 2.3 lb bare, against 6.9 inches for the FUEL hammer drill.

Is the 3697-22 worth the extra money?

At the same $149.99 at West Marine as of November 4, 2026, yes: you get a hammer drill, 5.0Ah batteries and a hard case. Above roughly $250 it is a harder call unless you need masonry drilling.

How long do the batteries last?

The 5.0Ah packs in the 3697-22 hold over three times the charge of the 1.5Ah packs in the 2691-22, so expect longer runtime per charge.

Do both work with other Milwaukee M18 tools?

Yes. Both are part of the M18 system, which covers 250+ tools, and both include a multi-voltage charger.

M18 Compact 2-Tool Combo Kit vs Milwaukee 3697-22 M18 FUEL 18V Brushless Cordless 2-Tool Combo Kit – Hammer Drill & Impact Driver

Buy the M18 FUEL 3697-22 kit if you need a hammer drill for masonry, more torque, or bigger batteries. Buy the 2691-22 compact kit if you want the lightest, shortest tools for tight spaces and overhead work. Both show the same best new price of $149.99 at West Marine as of November 4, 2026, so the FUEL kit is the stronger buy at that price. The 2691-22 has ranged $149.99 to $190.00 since October 30, while the 3697-22 has swung $149.99 to $339.99, so check the store before you assume the low price holds.

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