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CRAFTSMAN CMCF940M1 vs Protmex JKO-09

Our Best Overall vs our Best Budget cordless impact wrenches — is the upgrade worth it?

The short answer

The CRAFTSMAN CMCF940M1 costs $124.61 more (168% more) than the Protmex JKO-09 — $199 vs $74.39. For the extra money you get: a hog-ring anvil (fast socket swaps).

Buyers rate them 4.8 vs 4.6 stars, and the CRAFTSMAN CMCF940M1 has fewer reviews behind its rating (990 vs 1,886). On our 100-point scale that works out to 92 vs 87.

Bottom line: if you'll use it often, the CRAFTSMAN CMCF940M1 is worth the $124.61. For occasional jobs around the house, the Protmex JKO-09 does the work for less.

Price no object? Our pick is the DEWALT DCF900P1 ($320.80) — see why on the full ranking.

Side by side

CRAFTSMAN CMCF940M1
Best Overall		Protmex JKO-09
Best Budget
Price$199$74.39
Rating 4.8 4.6
Reviews9901,886
Our score92/100 (#2)87/100 (#5)
Bought on Amazon300+/mo50+/mo
Voltage20V21V
Drive1/2 in, hog ring1/2 in
Max torque700 ft-lbs fastening / 1,000 ft-lbs breakaway900 ft-lbs (1,200 N·m) claimed
Battery1 x 4.0Ah + charger2 x 4.0Ah + charger
Speed modes3 speeds3 speeds (forward)
KitYesYes
Hog ringYesNo
Multi modeYesYes

Prices, ratings and review counts captured from Amazon on 2026-09-23; prices change often.

Best Overall
CRAFTSMAN V20 RP Brushless 1/2" High Torque Impact Wrench Kit, 4Ah Battery and Charger (CMCF940M1)
CRAFTSMAN

CRAFTSMAN V20 RP Brushless 1/2" High Torque Impact Wrench Kit, 4Ah Battery and Charger (CMCF940M1)

The one to buy if you don't already own a battery platform. A brushless 1/2-inch wrench with 1,000 ft-lbs of breakaway torque, a 4Ah battery, and a charger for $199, rated 4.8 stars across nearly 1,000 reviews.

Choose it for

  • Complete kit: tool, 4Ah battery, and charger
  • 1,000 ft-lbs breakaway handles lug nuts and rusted suspension bolts
  • Hog ring anvil, 3 speed settings, LED light
  • Sold and shipped by Amazon

Watch out for

  • 700 ft-lbs fastening is below the DEWALT DCF900's 1,030
  • CRAFTSMAN V20 batteries are a smaller ecosystem than DEWALT or Milwaukee
Check today's price →
Best Budget
Protmex 1/2" Brushless Cordless Impact Wrench, 900 ft-lbs, 21V, 2x 4.0Ah Batteries (JKO-09)
Protmex

Protmex 1/2" Brushless Cordless Impact Wrench, 900 ft-lbs, 21V, 2x 4.0Ah Batteries (JKO-09)

The best-rated of the budget kits at 4.6 stars from nearly 1,900 reviews. Two batteries, four impact sockets, an extension, and three forward speeds for about $74.

Choose it for

  • 4.6 stars across 1,886 reviews
  • 3 forward speeds up to 3,500 RPM
  • Two 4Ah batteries, sockets, and extension bar included

Watch out for

  • Reverse runs at one fixed speed
  • 1,200 N·m is 885 ft-lbs, so the 900 ft-lbs headline is rounded up
  • Proprietary battery
Check today's price →

Quick answers

Is the CRAFTSMAN CMCF940M1 worth the extra money over the Protmex JKO-09?

The CRAFTSMAN CMCF940M1 costs $124.61 more (168% more) than the Protmex JKO-09 — $199 vs $74.39. For the extra money you get: a hog-ring anvil (fast socket swaps). Bottom line: if you'll use it often, the CRAFTSMAN CMCF940M1 is worth the $124.61. For occasional jobs around the house, the Protmex JKO-09 does the work for less.

Which has better reviews, the CRAFTSMAN CMCF940M1 or the Protmex JKO-09?

The CRAFTSMAN CMCF940M1 is rated 4.8 stars from 990 reviews; the Protmex JKO-09 is rated 4.6 stars from 1,886 reviews.

What is the best cordless impact wrenches pick overall?

Our Best Overall is the CRAFTSMAN CMCF940M1 (score 92/100), ranked against 9 other cordless impact wrenches on rating, review volume and features.

See the full top 10

These two are picked from a ranking of 10 cordless impact wrenches, scored on star rating, review volume and the features that matter for the job. See all 10 and the one to avoid →

More head-to-heads