That Drill Kit Is Just the Down Payment
Batteries, bits, blades, and the brand ecosystem lock-in that turns one purchase into five.
You bought a cordless drill kit for $79 and felt good about the deal. Then you needed a set of drill bits ($25), a magnetic bit holder ($8), a stud finder ($30), screws and anchors ($15), and a second battery because the first one died mid-project ($60). Your $79 drill just cost $217.
This is the real cost of building a tool collection. The kit is the gateway, but batteries, consumables, and accessories are where the money goes. This guide breaks down every cost so you can budget accurately.
Not sure which tools to buy? Start with our What Tools Should I Buy? guide. Deciding between cordless and corded? See our comparison guide. And read 5 tool buying mistakes before you spend.
What Are the Hidden Costs of Building a Tool Collection?
Batteries Are the Real Expense
Batteries are the most expensive component of a cordless tool system -- and they are consumable. A lithium-ion battery loses noticeable capacity after 2-3 years of regular use. Replacement costs vary dramatically by platform:
| Platform | Compact Battery | Standard Battery | High-Capacity Battery |
|---|---|---|---|
| Ryobi ONE+ 18V | $35 (1.5Ah) | $55 (4.0Ah) | $79 (6.0Ah) |
| DeWalt 20V MAX | $49 (2.0Ah) | $79 (5.0Ah) | $139 (8.0Ah) |
| Milwaukee M18 | $59 (2.0Ah) | $99 (5.0Ah) | $179 (12.0Ah) |
Over 5 years, plan to replace at least 2 batteries. That is $70-$360 depending on your platform -- a cost most buyers never consider when choosing between Ryobi and Milwaukee.
Consumables Add Up Fast
Drill bits dull and break. Saw blades wear out. Sandpaper is literally designed to be disposable. These ongoing costs are real:
- Drill bit sets: $15-$40 per set, replaced every 1-2 years with regular use
- Driver bit sets: $10-$25 per set, individual bits wear out from stripping
- Circular saw blades: $10-$30 per blade, 1-2 replacements per year for active DIYers
- Oscillating tool blades: $5-$15 each, consumed quickly in demolition work
- Sandpaper: $10-$20 per pack, multiple packs per project
Accessories You Will Eventually Need
These are the purchases that creep up on you:
- Stud finder: $20-$40 (essential for hanging anything heavy)
- Clamps: $10-$30 each (you always need more clamps)
- Safety glasses and hearing protection: $15-$30
- Work light: $20-$50 (or a free bare-tool option in your battery platform)
- Tool bag or box: $30-$80 for proper storage
Ryobi vs DeWalt vs Milwaukee: 5-Year Total Cost Comparison
| Cost Category | Ryobi ONE+ | DeWalt 20V MAX | Milwaukee M18 |
|---|---|---|---|
| Starter Kit (drill + impact) | $149 | $179 | $399 |
| Circular Saw (bare tool) | $79 | $149 | $179 |
| Replacement Batteries (2) | $70 | $158 | $198 |
| Consumables (bits, blades) | $150 | $150 | $150 |
| Hand Tools + Accessories | $120 | $120 | $120 |
| 5-Year Total | $568 | $756 | $1,046 |
| Cost Per Year | $114/yr | $151/yr | $209/yr |
The pattern is clear: Ryobi costs roughly half of Milwaukee over 5 years. The performance gap matters for contractors using tools 8 hours a day. For homeowners using tools a few times a month, Ryobi delivers 90% of the capability at 55% of the cost.
DeWalt sits in the practical middle -- meaningfully more capable than Ryobi, meaningfully cheaper than Milwaukee. For most serious DIYers, it is the sweet spot.
How to Build a Tool Collection Without Overspending
- Buy combo kits, not individual tools. The per-tool cost in a combo kit is 30-50% less than buying each tool separately.
- Buy during Father's Day or Black Friday. These two sale events offer the best tool deals of the year. "Buy a tool, get a free battery" promotions effectively give you a $50-$100 battery for free.
- Buy bare tools after your first kit. Once you own batteries and a charger, every new tool is a bare-tool purchase at 30-50% less than the kit price.
- Buy quality consumables. Cheap drill bits break faster and cost more per hole. DeWalt, Bosch, and Makita bits last 2-3x longer than generic alternatives.
Frequently Asked Questions
How much does a basic home toolkit cost?
A complete cordless toolkit for common home projects costs $300-600: drill/impact driver combo ($100-200), circular saw ($80-120), batteries and charger ($included or $50-100), plus essential hand tools ($50-100). This covers 95% of homeowner needs. Spending $100-200 more adds a reciprocating saw and oscillating multi-tool for demolition and detail work.
How often do cordless tool batteries need replacing?
Every 3-7 years depending on use frequency and care. A battery used weekly for 5 years gets about 250-350 cycles -- well within the 800-1,200 cycle lifespan. Batteries degrade faster if stored fully charged in hot garages. Replacement costs: Ryobi $40-60, DeWalt $60-100, Milwaukee $80-120 per battery. Having 2 batteries per tool ensures you always have one charged.
Is it cheaper to buy tools individually or in combo kits?
Combo kits save 25-40% over buying the same tools individually. A 2-tool drill/impact driver kit costs $150-250; buying each separately with its own battery costs $250-400. The best value is the starter combo kit (2 tools + 2 batteries + charger) plus individual tools added later as needed. Avoid large 5-7 tool kits that include tools you will never use.
Are Ryobi tools worth it compared to DeWalt?
For homeowners, Ryobi offers 80-90% of DeWalt performance at 50-70% of the price. The biggest Ryobi advantage: the 200+ tool ecosystem means you can find a Ryobi version of almost any tool that runs on batteries you already own. DeWalt wins on durability and power for intensive use. For weekend projects and home maintenance, Ryobi is the smarter financial choice.
What accessories should I budget for beyond the tool kit?
Drill bit set ($15-30), screwdriver bit set ($10-20), tape measure ($10-20), level ($15-30), safety glasses ($5-10), and hearing protection ($15-25). Total: $70-135 in accessories for a complete, functional workshop. Specific projects may require specialty bits, blades, or sandpaper -- budget an additional $20-50 per project for consumables.
How much do replacement blades and bits cost per year?
For typical homeowner use (monthly projects): $30-60/year for drill bits, screwdriver bits, and saw blades. Heavy project years (renovation, deck building): $80-150 in consumables. The cost is modest but adds up -- a $15 blade set every 3 months costs $60/year. Buy quality bits (Bosch, Milwaukee) that last 3-5x longer than bargain-bin bits; the cost per hole is lower.
Is renting tools better than buying for big projects?
For tools you will use once or twice: renting saves money. Home Depot rents power tools for $30-80/day. A $50 rental for a one-day project is smarter than a $200 purchase for a tool you will never use again. For tools you will use 3+ times per year: buying is cheaper within the first year. Rent before you buy to confirm you actually need the tool and like the specific model.
Not sure where to start?
Follow the path that matches where you are in your decision. Each guide builds on the last.
You can start at any stage. Each article stands on its own, but reading in order gives you the full picture. Want to know when prices drop? See our Best Time to Buy Tools pricing calendar.
Continue Reading
Cordless Has Caught Up to Corded -- Except for These Jobs
Battery tools win in almost every category now. But not all of them. Here is where each still makes sense.
13 min readThe Home Depot Mistakes That Cost New Homeowners Hundreds
Over-buying, brand mismatching, and three other tool aisle errors that drain your budget.
10 min readThe First Toolkit: Exactly What a Homeowner Needs (and Nothing Extra)
Matched to your actual projects -- not the 200-piece set gathering dust in someone else's garage.
15 min readNever Miss the Best Price
Get buying guides and deal alerts timed to when prices actually drop lowest.
Get Monthly Deal Alerts