Alpha
Alpha Onsite+ Step Tip Combination Drill & Tap Set — M3 to M12, 7 Piece
Part No: SM7DTST | Barcode: 9313601027125 | Range: Onsite+
The Alpha Onsite+ Combination Drill & Tap Set includes all seven metric thread sizes from M3 to M12, each combining four separate drilling processes into a single tool. Featuring the patented step tip design, AITiN coating, and ¼″ insert shanks, this set eliminates pre-drilling and dramatically speeds up tapping work on mild steel, stainless steel, and aluminium.
7pc Set
M3–M12
4-in-1 Process
AITiN Coated
¼″ Insert Shank
6x Faster
Suitable For
Mild Steel
Stainless Steel
Aluminium
Key Features & Benefits
- Complete M3 to M12 coverage — all seven common metric thread sizes in one set, eliminating the need for separate drill bits and taps.
- 4-in-1 combination tool — each bit drills, chamfers, taps, and deburrs in a single pass, cutting four separate processes down to one.
- Patented step tip design — eliminates pre-drilling and minimises wandering, making the process 6x faster than conventional drill-and-tap workflows.
- AITiN coating — extreme temperature resistance and long service life, even in stainless steel and hardened materials.
- ¼″ insert shank — compatible with cordless drills and drivers for fast, portable tapping work anywhere on the job site.
- Premium case — organised storage keeps all seven sizes protected and ready to use.
When to Use This Set
The SM7DTST set is designed for tradies, fabricators, and fitters who regularly need to drill and tap holes in steel and aluminium. Instead of swapping between a drill bit, countersink, tap, and deburring tool, each Onsite+ combination bit does all four in one pass. The complete M3–M12 range covers everything from small equipment mounting holes through to structural bolt threads. For individual sizes, see the DTSTM series in the table below.
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. | Thread Size | Drill Ø | Tap Ø |
|---|---|---|---|
| DTSTM030 | M3x0.5 | 2.5mm | 3.4mm |
| DTSTM040 | M4x0.7 | 3.3mm | 4.5mm |
| DTSTM050 | M5x0.8 | 4.2mm | 5.5mm |
| DTSTM060 | M6x1.0 | 5.0mm | 6.8mm |
| DTSTM080 | M8x1.25 | 6.8mm | 8.7mm |
| DTSTM100 | M10x1.5 | 8.5mm | 10.8mm |
| DTSTM120 | M12x1.75 | 10.2mm | 13.0mm |
| SM7DTST ★ | M3–M12 Set | 7pc Set | — |
★ You are viewing the highlighted variant. Other sizes in this series are also available.
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