The percentage shows how many AliExpress buyers rated this product positively. InstaShop does not edit or filter the rating.
✓ Selected for InstaShop by high positive feedback (88%+) and proven sales
✅ Covers a wide range of hole diameters with just four bits
✅ Hex shank design prevents slipping and fits quick-change chu
✅ Drills, deburrs, and chamfers in a single operation
👤 DIY hobbyists and homeowners working with thin sheet metal, plastics, or wood.
Price updated
Price range by option: $6.31 – $24.27
Choose an option (2)
Options (2):
ℹ️ Final price per option is set on AliExpress.
76/100👍 Worth a lookInstaShop Score
Rating
Sales volume
Discount
Computed by InstaShop from the product's real rating, sales volume and discount - an independent editorial signal, not a guarantee. How it is calculated
This versatile step drill bit set allows you to create multiple hole sizes with precision and ease. It is perfect for DIY enthusiasts and professionals looking to work efficiently on various projects. Achieve clean results and save time with these durable tools.
InstaShop is a catalog that links to AliExpress. Purchase, shipping and warranty are provided solely by the AliExpress seller; some links are affiliate links (the price to you doesn't change). Terms of Use
📈 Price history: is the discount real?
Typical price
Based on InstaShop's daily price tracking on AliExpress since 28.9.2026 · 32 measurements
Today's price
$6.25
checked 29.10
Lowest
$6.09
6.10
Average · 32 measurements
$6.21
28.9–29.10
We have tracked this product's price for 32 days, since 28.9.2026. The lowest was $6.09 (on 6.10.2026), the average $6.21 and the highest $6.32. Today's price, $6.25, is slightly above the average.
$6.25 · About usual (within 2% of the $6.21 average)
Last 30 days
low $6.09 · average $6.21
Tracked since
28.9.2026 · 32 daily checks
Lowest price
$6.09 (6.10.2026)
Price drops
2 times
At the current price
2 days ($6.25)
Listed discount
67% - not real: the "original" price was never charged while we tracked it
Real data only: one price check per day on AliExpress, international listing, in US$.
🔍 In-depth analysis
This step drill bit set is designed for versatile hole expansion and drilling tasks without requiring constant bit changes. Featuring a black finish, straight flutes, and a hex shank, the set covers a broad range of standard metric sizes indicated in the listing: 3-12mm, 4-12mm, 4-20mm, and up to 4-32mm. The hex shank design ensures a secure grip in standard drill chucks and compatibility with rapid-load chuck adapters, minimizing slipping under load.
With a consistently high buyer rating across several hundred orders, this hardware set has proven dependable for general workshop applications. The substantial discount from its original baseline makes it an accessible choice for general maintenance, allowing you to bore neat holes in light metals, junction boxes, and plastic enclosures without carrying multiple individual twist drills.
✅ Pros
Broad sizing capability from 3mm all the way up to 32mm for multi-purpose jobs.
Hexagonal shank reduces slippage in drill chucks and allows rapid bit changes.
Strong customer track record with a high average rating across hundreds of completed orders.
Cons and cautions
Base alloy composition and surface coating longevity are not detailed in the product name.
Straight-flute designs clear metal shavings somewhat slower than spiral-flute variants.
Drilling depth per diameter is restricted by the height of each individual step.
From our data
2 variants on one listing: price and spec change with the option you pick
This analysis is written with an AI model from the product data (name, category, price, rating and orders), not from a hands-on test. How we choose and score
Who it's for: DIY enthusiasts, home handymen, electricians, and automotive hobbyists who frequently need to bore or enlarge holes in thin sheet metal, ductwork, junction boxes, acrylic, or thin plywood.
Who should skip it: Heavy industrial fabricators or machinists working routinely with thick structural steel or hardened alloy plates that demand certified industrial-grade cobalt tooling.
🔎 Check before you buy
Verify the exact core metal grade (such as HSS 4241, 6542, or carbon steel) with the seller.
Confirm whether the selected order option includes all four sizes or just an individual piece.
Check the maximum recommended material thickness per step step height.
Confirm that the hex shank matches your tool's standard 1/4-inch quick-release chuck.
💰 Value verdict: At its current discounted rate, this multi-size step drill set offers clear practical utility. The combination of verified positive customer sentiment and large diameter coverage up to 32mm makes it a sensible, cost-effective addition to any standard home tool kit.
💡 Tips
Apply cutting oil or lubricant while drilling into metal to keep friction low and prolong edge sharpness.
Run your drill at lower RPMs as you reach larger step diameters to avoid overheating the bit.
Ensure your workpiece is firmly clamped down to prevent grabbing when the bit steps up to the next size.
Questions about this product
Can these step bits drill through stainless steel?
They are best suited for mild metals, aluminum, thin sheet steel, and plastics. Hardened stainless steel typically requires specialized cobalt alloys, so check the base steel rating with the seller first.
Do I receive all four sizes in one order?
The title lists multiple sizes, but AliExpress product pages often feature various selection tiles. Check your chosen cart option carefully to ensure it contains the full multi-piece set rather than a single bit.
Will the hex shank fit into my standard impact driver?
Hex shanks typically fit standard quick-connect adapters, but you should verify the exact shank width with the seller, and avoid heavy impact hammering to prevent dulling or snapping the bit.
❓ Questions & Answers
What does it cost in US dollars?
$6.25 - AliExpress's international price at our latest check (29.10.2026). The exact amount in your currency, with shipping, is shown at AliExpress checkout.
Shipping and import taxes to my country?
Delivery to your address, its cost and time depend on the seller and your country; import duty/VAT depends on your country's rules (in the EU, the UK and Australia VAT/GST is usually collected at AliExpress checkout). All of it is shown before you pay.
Is this price tracked?
Yes. We have checked this listing's price 32 times since 28.9.2026 - see the price history and the tracking facts on this page.
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