Search Results:
Search Results:
1 Choose Quantity
2 Choose Extras
500,000+ Orders Delivered FAST!
100-Day Money Back Guarantee
Over 5,587+ 5-Star Google Reviews
The Alpha C9STSIM4-20TM is a 4–20mm spiral flute step drill with 9 precision steps, engineered for fast, clean drilling through sheet metal, plastics, and non-ferrous materials. It features a 1/4" quick-change shank, making it compatible with both cordless drills and impact drivers for efficient tool changes on the job.
Built for performance, the bit includes a self-starting split point that removes the need for pilot holes, and a tempered black finish for better chip flow, heat resistance, and corrosion protection. The 2-flute spiral design supports smoother cutting and cleaner results, while laser-etched step markings ensure high visibility during use. Rated for materials up to 3mm thick (or 1.5mm in stainless steel), this drill bit is a tough, trade-ready solution for accuracy and speed.
Alpha C9STSIM4-20TM Features
C9STSIM4-20TM FAQ
Q: What is this drill best suited for?
A: It’s ideal for metal, plastic, and stainless steel up to 1.5mm thick.
Q: Can I use it with an impact driver?
A: Yes, it’s compatible with cordless drills and impact drivers.
Q: Are the step sizes easy to read?
A: Yes, they’re laser-etched for clear, long-lasting visibility.
(C9STSIM4-20TM)
100-Day Fuss-Free Returns
We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.
If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.
All products come with a manufacturer’s or supplier’s warranty
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
Contact us via our chat to arrange the return.
Exclusions
We can’t accept returns for:
How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
Warranty Method: Return to Sparky Direct
| Specification | Details |
|---|---|
| SKU | C9STSIM4-20TM |
| Type | Spiral Step Drill |
| Drilling Range | 4 – 20 mm |
| Steps | 9 steps: 4, 6, 8, 10, 12, 14, 16, 18 & 20 mm |
| Shank Size | 1/4″ Quick Change |
| Material Suitability | Sheet metal, non-ferrous metals, plastic (up to 3 mm), stainless steel (up to 1.5 mm) |
| Tool Compatibility | Cordless drills & impact drivers |
| Cutting Speed | 400 – 1,500 RPM |
| Finish | Tempered black finish (corrosion resistant, maximizes lubricant hold) |
| Special Features | Laser etched hole sizes, non-slip shank, 2 flute design, self-starting split point |
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Alpha |
| SKU | C9STSIM4-20TM |
| Model # | C9STSIM4-20TM |
| Barcode # | 9313601016143 |
| Package Weight | 0.060kg |
| Package Width | 0.080m |
| Package Height | 0.170m |
| Package Length | 0.035m |
| TYPE | VALUE |
|---|---|
| Type | Step Drill |
| Brand | Alpha |
| Steps | 9 |
| Drill Sizes | 4, 6, 8, 10, 12, 14, 16, 18 & 20 mm |
| Shank Size | 1/4" |
Help other Sparky Direct users shop smarter by writing reviews for products you have purchased.
$227.82 $207.11 ex. GST
$67.89 $61.72 ex. GST
$97.90 $89.00 ex. GST
$67.89 $61.72 ex. GST
$212.44 $193.13 ex. GST
YOUR ATTENTION PLEASE: Shipping is not available to for this product. Only order this product is you intend to pick it up locally. We will not ship this product to you if you order this. If you wish to cancel this order after ordering it you will be charged a 3.0% Refund Fee