When is it cheaper to rent a 1/2 Cordless Impact by the week than by the day?

From day 3. 3 days at the $18 day rate would be $54, but the weekly rate caps it at $50.

When is it cheaper to rent a 1/2 Cordless Impact on the 28-day rate?

From day 17. At that point the week-and-day composition reaches the $150 28-day rate, and the price stops climbing for the rest of the cycle.

Break-even duration

Equipment rents on three rates — a day rate, a week rate and a 28-day rate — and the cheapest one changes as the job runs long. This finds the two days where it changes, on a real listing’s real published rates.

1/2 Cordless Impact

See the listing →

nathan weaver · Air Tools - Impact Sockets

Day: $18
Week: $50
28 days: $150

Daily stops winning on

day 3

3 days at the day rate would be $54. On the week rate it is $50.

Weekly stops winning on

day 17

17 days at the day rate would be $306. On the 28-day rate it is $150.

The working

Whole weeks bill at the week rate; the leftover days bill at the day rate but never add up to more than one extra week; and a whole 28-day cycle never costs more than the 28-day rate. That is the rule, applied one day at a time.

Rental price by duration for 1/2 Cordless Impact, days 1 to 35
Days	At the day rate	On the ladder	Difference	Rate in play
1	$18	$18	—	day
2	$36	$36	—	day
3	$54	$50	you save $4	week
4	$72	$50	you save $22	week
5	$90	$50	you save $40	week
6	$108	$50	you save $58	week
7	$126	$50	you save $76	week
8	$144	$68	you save $76	week
9	$162	$86	you save $76	week
10	$180	$100	you save $80	week
11	$198	$100	you save $98	week
12	$216	$100	you save $116	week
13	$234	$100	you save $134	week
14	$252	$100	you save $152	week
15	$270	$118	you save $152	week
16	$288	$136	you save $152	week
17	$306	$150	you save $156	28-day
18	$324	$150	you save $174	28-day
19	$342	$150	you save $192	28-day
20	$360	$150	you save $210	28-day
21	$378	$150	you save $228	28-day
22	$396	$150	you save $246	28-day
23	$414	$150	you save $264	28-day
24	$432	$150	you save $282	28-day
25	$450	$150	you save $300	28-day
26	$468	$150	you save $318	28-day
27	$486	$150	you save $336	28-day
28	$504	$150	you save $354	28-day
29	$522	$168	you save $354	day
30	$540	$186	you save $354	day
31	$558	$200	you save $358	week
32	$576	$200	you save $376	week
33	$594	$200	you save $394	week
34	$612	$200	you save $412	week
35	$630	$200	you save $430	week

Rental rates only. Protection and the marketplace service fee are added on top — see the checkout figure below.

What checkout will quote you

Rental · 17 days: $150
Rental protection (RPP): $22.50
Service fee: $15
Estimated total: $187.50

Pick a listing

The numbers come from one operator’s published rates, so the tool needs to know whose.

Where these numbers come from

The rates are the operator’s own, read live from their listing. The arithmetic is the same best-price billing engine that produces 2Quip invoices — not a second copy written for this page — run on the industry-standard terms: a 28-day cycle, whole weeks at the week rate, leftover days at the day rate capped at one more week.

An operator can agree different terms on an individual rental, and a long rental bills per 28-day cycle rather than in one lump. So treat this as what the rate card says, and the operator’s quote as what you are agreeing to.