No image
Irwin Unibit 10233CB Cobalt Step Drill Bit, #3, 9 Hole Sizes 1/4 in to 3/4 in
Mfr #: 10233CBBB #: irwin-10233cb-irwin-unibit-10233cb-cobalt-step-drill-bit-3-9-hole-sUPC: 038548099217
Scanned vendors: 3Last verified Oct 2, 2026 — price check expired
Price check expired
Prices move — we won't sell you this item on an old check. Run a fresh check and we'll verify the current price first.
Check current price✓Delivery: 2–4 business days, tracked to your door or dock
✓Returns: 30-day returns — terms always match the source we bought from.
⇄ Vendor prices
| Vendor | Price | Shipping |
|---|---|---|
| Architectural Builders SupplyOut of stock | $70.95 | See site |
Prices observed across vendors — click a vendor’s name to verify the price on their own page before ordering.
Reviews
Loading reviews…
🗎 Product description from the manufacturer spec sheet
The Irwin Unibit 10233CB is a #3 cobalt step drill bit engineered with M35 cobalt steel for maximum life when drilling in tough steel, including stainless steel. It drills 9 hole sizes from 1/4 in to 3/4 in in 1/16 in increments, with a SpeedPoint tip for fast starts, a radial concave single flute for true round holes, and hole sizes permanently laser etched on the flute. The 3/8 in hex shank has three flats to prevent chuck slippage.
▦ Specifications spec-checked before it ships
- Description
- #3
- Hole Sizes
- 1/4" - 3/4" (1/16" Increments)
- Number of Steps
- 9
- Cutting Edge Material
- M35 Cobalt HSS
- Hex Shank Size
- 3/8"
- Material Thickness [Max]
- 1/16 in
- Point Type
- SpeedPoint
- Flute Type
- Radial Concave
- Country of Origin
- US
- Weight
- 0.18 lb
⌗ Cross-references every known SKU, MFR & MPN
MPN10233CB
UPC038548099217