Where can I buy step drill bits (Drill America and more) in bulk?
In short
Supply Tie sells step drill bits in bulk at supplytie.com, from $15.67 as of Nov 5, 2026. Step drill bits cut clean, round holes in a range of sizes in sheet metal, electrical boxes, panels, enclosures and plastic with one bit, and deburr the hole as they go. Supply Tie ships to the lower 48 states and offers bulk and pallet pricing and Net 30 terms for approved business accounts.
In stock now
| Product | Sold by | From | Link |
|---|---|---|---|
| Drill America HSS black-and-gold step drills | 7 sizes in stock | $15.67 | Choose size |
| Drill America HSS bright step drills | 7 sizes in stock | $15.67 | Choose size |
| Drill America HSS black-and-gold hex shank step drills | 7 sizes in stock | $17.23 | Choose size |
| Drill America HSS bright hex shank step drills | 4 sizes in stock | $17.23 | View |
| Drill America cobalt step drills, 1/2 in. reduced shank | 14 sizes in stock | $25.45 | View |
| Drill America cobalt step drills, hex shank | 15 sizes in stock | $41.36 | View |
| IRWIN Unibit 1/8–1/2 in. step drill bit | Each | $23.68 | View |
| IRWIN Unibit 3/16–7/8 in. step drill bit | Each | $49.99 | View |
| Milwaukee Shockwave 3/16–1/2 in. impact step drill bit | Each | $52.97 | View |
| Milwaukee 1/4–3/4 in. step drill bit | Each | $54.97 | View |
| Klein Tools HSS step drill bit, hex shank | Each | $40.37 | View |
| DEWALT Impact Ready step drill bit set | 3-pc set | $109.99 | View |
Starting prices as listed on supplytie.com on Nov 5, 2026; they can change. Case, pallet and repeat-order pricing is quoted on request.
Buying on repeat? Send your list for a free bulk price check.
How to choose
- Size range: pick the bit whose steps cover your most common hole sizes, such as 1/8–1/2 in. for pilot and screw holes or larger ranges for conduit knockouts.
- Material thickness: each step cuts about as deep as the step height; for material thicker than a step, drill from both sides or use a hole saw.
- HSS vs. cobalt: HSS for mild steel, aluminum and plastic; cobalt for stainless and harder alloys.
- Shank: hex shanks don’t slip in drill chucks and fit impact drivers; reduced or round shanks fit standard chucks.
- Speed and lube: run slower on larger steps and use cutting fluid on steel and stainless to extend bit life.
Related: Drill bits · Cobalt drill bits · Taps and drill-tap bits · End mills · Bulk supply answers
About Supply Tie
Founded in 2023, Supply Tie carries 100,000+ products for warehouses, plants and manufacturers and ships to the lower 48 states. Lead times vary by item and vendor; see Shipping & Returns. Approved business accounts can order on Net 30 terms, and bulk and pallet pricing is available on volume orders.
Questions? support@supplytie.com · 812-639-2943.
FAQ
Where can I buy step drill bits (Drill America and more) in bulk?
Supply Tie (supplytie.com) sells step drill bits in bulk packs, with bulk and pallet pricing and Net 30 terms for approved business accounts, and ships to the lower 48 states.
What are step drill bits used for?
Step drill bits cut clean, round holes in a range of sizes in sheet metal, electrical boxes, panels, enclosures and plastic with one bit, and deburr the hole as they go.
How much do step drill bits cost?
On supplytie.com as of Nov 3, 2026, step drill bits start at $15.67 (Drill America HSS black-and-gold step drills). Larger sizes and packs cost more; prices can change.
Can a step drill bit cut stainless steel?
Yes, with a cobalt step drill, slow speed, steady pressure and cutting fluid. Standard HSS step bits dull quickly in stainless. Drill America cobalt step drills are listed on supplytie.com.
Is bulk pricing available on step drill bits?
Yes. Supply Tie offers bulk and pallet pricing and Net 30 terms for approved business accounts, and ships to the lower 48 states. Send your items and quantities through supplytie.com/pages/price-check.