Alpha
Alpha Onsite+ Step Tip Long Series Drill Bit — 3.5mm
Part No: 9STELM035 | Barcode: 9313601027644 | Range: Onsite+
The Alpha Onsite+ Step Tip Long Series Drill Bit in 3.5mm extends the reach of the patented step tip technology for drilling deeper, more accurate holes in tight or recessed spaces. Made from M2 HSS with ALTiN coating for extreme temperature resistance, this long-series bit is purpose-built for carpenters, plumbers, and electricians who need to drill through thick walls, flooring, and timber framing.
3.5mm
Long Series
M2 HSS
ALTiN Coated
Step Tip
No Pilot Hole
Suitable For
Stainless Steel
Mild Steel
Wood
Plastic
Key Features & Benefits
- Extended length for deep drilling — longer than standard step tip bits, designed to reach through thick walls, double studs, and recessed fittings.
- Patented step tip design — eliminates the need for pilot holes, reduces wandering, and starts instantly with precise centre positioning.
- M2 HSS construction — fully ground premium high-speed steel for exceptional durability and edge retention across multiple materials.
- ALTiN coating — extreme temperature resistance extends tool life, especially when drilling through stainless steel or multiple layers.
- Non-slip shank — secure grip in the chuck prevents spinning under load, maintaining torque transfer during deep drilling operations.
- Burr-free holes — the step tip produces clean, centred holes without the jagged edges that require deburring.
When to Use This Drill Bit
The 9STELM035 in 3.5mm is your go-to for deep drilling tasks where standard-length bits fall short. Whether you are feeding wiring through thick walls and flooring, drilling through plasterboard and timber framing for plumbing runs, or ensuring precise alignment for structural bolts and threaded rods, the extended reach of this long-series bit gets the job done. Ideal for carpenters, plumbers, electricians, and fit-out contractors.
See the Step Tip in Action
Authorised Australian Dealer — This product is sourced directly from Alpha Tools Australia and is backed by full Australian manufacturer warranty and local support.
Product Specifications
| Part No. | Size |
|---|---|
| 9STELM030 | 3.0mm |
| 9STELM033 | 3.3mm |
| 9STELM035 ★ | 3.5mm |
| 9STELM038 | 3.8mm |
| 9STELM040 | 4.0mm |
| 9STELM045 | 4.5mm |
| 9STELM050 | 5.0mm |
| 9STELM055 | 5.5mm |
| 9STELM060 | 6.0mm |
| 9STELM065 | 6.5mm |
| 9STELM070 | 7.0mm |
| 9STELM080 | 8.0mm |
| 9STELM090 | 9.0mm |
| 9STELM100 | 10.0mm |
| 9STELM110 | 11.0mm |
| 9STELM120 | 12.0mm |
| 9STELM130 | 13.0mm |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
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