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$13.26
ℹ️ Final price is set on AliExpress – during sales (e.g. SuperDeals) it is often lower.
↓ 7% below usual ($3 under the average)tracked $42.06 · avg $45.05 · low $40.09 · checked today 04:16 🛒 Buy on AliExpress →
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$13.26

HSS 4241 Cobalt 50-Size Step Drill Bit Set with Aluminum Case - Metal and Wood Hole Punching Tool

90.9% positive feedback87 reviews 526 sold recently🏷️ Fbiannely🏬 Sold by Hotool Store✓ Picked
AliExpress buyer rating : What this means

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
  • ✅ Replaces multiple individual drill bits with a versatile ran
  • ✅ Self-deburring design creates smooth, clean holes while dril
  • ✅ Cobalt-alloyed high-speed steel offers improved heat resista
👤 DIY hobbyists and homeowners needing to drill various hole sizes in thin metal, wood, or plastic.
Price updated
📉 Down 11% this week
🚚 Shipping to Israel: $2.36 · 9–14 days (live from AliExpress)
79/100👍 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

Upgrade your workshop with this versatile step drill bit set featuring fifty different sizes for metal and wood. Perfect for professionals and DIY enthusiasts alike, it ensures precision on every project. The entire collection stays organized in a durable aluminum storage case.

📉 Price dropped 35%
📋 Full specs, sizes, materials & detailed description - on the AliExpress product page → 💬 Share this deal
🌍 International price: $13.26 (AliExpress's international listing). Shipping and any import taxes are shown at checkout. Details
Price historyLowest $12.64 (2.11) · full chart ↓
💡 Why buy · InstaShop analysis
👤 Best for: DIY hobbyists and homeowners needing to drill various hole sizes in thin metal, wood, or plastic.
🚫 Less suitable for: Industrial users or professionals regularly working with thick structural steel or high-tempered alloys.
🔎 Check before buying: Check if your drill's chuck size is compatible with the bits' shanks and use cutting oil to extend the tool's life.
💰 Is the price good? 65% below the store's listed reference price.
Good to know:
  • Material thickness is limited by the height of each individual step
  • HSS 4241 grade is generally not suitable for hardened or stainless ste
⭐ Quality & trust: 90.9% positive feedback from 87 AliExpress buyer reviews. Updated daily.
🚚 Tracked shipping · 🔒 AliExpress Buyer Protection · Shipping, customs & returns →

What AliExpress buyers say

90.9%
positive feedback
87 reviews · 526 sold recently

The data comes from AliExpress and is updated daily. Full reviews, including buyer photos, are on the AliExpress product page.

See reviews on AliExpress →
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 · 43 measurements

Today's price
$13.26
checked today 04:16
Lowest
$12.64
2.11
Average · 43 measurements
$14.21
28.9–9.11
$12$14$16$1828.99.1019.1030.10TodayAverage $14.21Highest $17.57 · 5.11Lowest: $12.64 · 2.11

We have tracked this product's price for 43 days, since 28.9.2026. The lowest was $12.64 (on 2.11.2026), the average $14.21 and the highest $17.57. Today's price, $13.26, is 7% below the average.

All 43 measurements as a table
DatePriceChange
9.11.2026 (today)$13.26–
8.11.2026$13.26↓ $4.14
7.11.2026$17.40↓ $0.08
6.11.2026$17.48↓ $0.09
5.11.2026$17.57↑ $4.39
4.11.2026$13.18↑ $0.39
3.11.2026$12.79↑ $0.15
2.11.2026$12.64↓ $1.10
1.11.2026$13.74↓ $0.81
31.10.2026$14.55↑ $0.05
30.10.2026$14.50↑ $0.12
29.10.2026$14.38↑ $0.06
28.10.2026$14.32↓ $0.21
27.10.2026$14.53↑ $0.04
26.10.2026$14.49–
25.10.2026$14.49–
24.10.2026$14.49↑ $0.11
23.10.2026$14.38–
22.10.2026$14.38↑ $0.37
21.10.2026$14.01↑ $0.01
20.10.2026$14.00↑ $0.03
19.10.2026$13.97–
18.10.2026$13.97–
17.10.2026$13.97↓ $0.02
16.10.2026$13.99↑ $0.15
15.10.2026$13.84↓ $0.44
14.10.2026$14.28↑ $0.06
13.10.2026$14.22↑ $0.03
12.10.2026$14.19–
11.10.2026$14.19–
10.10.2026$14.19↓ $0.03
9.10.2026$14.22↑ $0.10
8.10.2026$14.12↓ $0.04
7.10.2026$14.16↑ $0.14
6.10.2026$14.02↓ $0.23
5.10.2026$14.25↑ $0.40
4.10.2026$13.85↑ $0.42
3.10.2026$13.43–
2.10.2026$13.43↓ $0.02
1.10.2026$13.45↓ $0.38
30.9.2026$13.83↑ $0.12
29.9.2026$13.71–
28.9.2026$13.71–

The final price is set by AliExpress. · How we check fake discounts

🧾 From our price tracking

Price now
$13.26 · 7% below usual (average $14.21)
Last 30 days
low $12.64 · average $14.34
Last 90 days
low $12.64 · average $14.21
Tracked since
28.9.2026 · 43 daily checks
Lowest price
$12.64 (2.11.2026)
Price drops
7 times
At the current price
2 days ($13.26)
Listed discount
65% - 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 HSS 4241 Cobalt step drill bit set is designed as a comprehensive solution for those needing to create various hole sizes without the hassle of constantly switching bits. According to the product title, the set covers an impressive 50 sizes and comes housed in a dedicated aluminum storage box. The use of HSS 4241 steel suggests these are intended for versatile applications, primarily targeting materials like wood and softer metals. The inclusion of cobalt typically implies improved heat resistance, which is a critical factor when friction builds up during high-speed drilling.

With over 300 orders and a respectable buyer rating, this set has established a solid foothold in the market. The high volume of sales suggests a level of consistency that many generic tool sets lack. While it is positioned as a multi-purpose kit, the real draw here is the organization provided by the aluminum case and the sheer range of hole diameters available at your fingertips. It represents a significant step up from buying individual bits, provided your projects don't require industrial-grade structural steel penetration.

✅ Pros

  • Massive variety with 50 sizes covered, offering extreme versatility for diverse projects.
  • Included aluminum case provides excellent organization and protection for the bits.
  • Strong social proof with hundreds of orders and a high average buyer rating.
  • Cobalt-infused HSS 4241 construction offers a better balance of heat resistance than standard high-speed steel.

Cons and cautions

  • HSS 4241 is a standard grade; it may struggle with very hard metals compared to more expensive M35 or M42 cobalt bits.
  • The specific diameter of each step is not listed in the title, requiring confirmation for precision tasks.
From our data
  • Paid shipping to Israel: $2.36 (per the AliExpress shipping quote)
  • Price moved between $12.64 and $17.57 since 28 Sep (43 tracked days)

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: This set is ideal for DIY enthusiasts, home workshop owners, and hobbyists who frequently work with thin sheet metal, plastics, or wood. It is a great fit for those who value organization and want a one-stop shop for various hole diameters.

Who should skip it: Professional machinists or fabricators working daily with thick stainless steel or hardened alloys may find HSS 4241 bits dull too quickly. It is also not for those requiring specific industrial certifications for high-torque applications.

🔎 Check before you buy

  • Verify the exact shank type (round or hex) to ensure compatibility with your specific drill or impact driver.
  • Ask the seller for the maximum material thickness recommended for each step bit.
  • Confirm the exact dimensions of the aluminum storage box to ensure it fits your tool cabinet.
  • Clarify with the seller if these bits are rated for use with a drill press or strictly for handheld use.
💰 Value verdict: Considering the current discount and the positive feedback from over 300 buyers, this set offers strong value. The price point is very fair for a 50-size kit in an aluminum case. It is a cost-effective choice for general-purpose drilling where convenience and variety are the priorities.

💡 Tips

  • Always use a cutting fluid or lubricant when drilling through metal to prevent overheating and extend the life of the cobalt coating.
  • Use a slower RPM setting on your drill for the larger steps to ensure a cleaner cut and less wear on the bit.
  • Apply a light coat of oil to the bits before long-term storage in the aluminum box to prevent any surface oxidation.

Questions about this product

Can these bits be used on stainless steel?
While the name mentions cobalt, HSS 4241 is generally better suited for softer metals, wood, and plastic. You should verify the specific hardness rating with the seller before attempting to drill stainless steel.
What is the benefit of the aluminum box?
The aluminum box protects the sharp edges of the bits from chipping during transport and keeps all 50 sizes organized so you don't lose smaller pieces in your toolbox.
Are these compatible with a standard hand drill?
Most step bits are designed for standard chucks, but since the shank size isn't specified, you should confirm with the seller whether they are round, 3-sided, or hex shanks.

❓ Questions & Answers

What does it cost in US dollars?
$13.26 - AliExpress's international price at our latest check (9.11.2026). 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 43 times since 28.9.2026 - see the price history and the tracking facts on this page.

Shipping, import taxes, returns & Buyer Protection - full answers →

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