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| Brand Name: | XRTOOLS |
| Model Number: | M3X0.5 |
| MOQ: | 100 SET |
| Price: | $1.35-$45.55/SET |
| Delivery Time: | 25-30 days |
| Payment Terms: | L/C, T/T, Western Union |
The M3 (M3 x 0.5) is one of the most widely used precision sizes in the electronics, automotive, and instrument industries. Our DIN 352 M3 Hand Tap Set is designed to provide clean, high-tolerance threads in manual operations. This 3-piece set—comprising the Taper (No.1), Plug (No.2), and Bottoming (No.3) taps—ensures the thread is formed gradually, which is critical for the delicate core diameter of M3 tools.
To meet diverse market requirements, we offer this set in two premium high-speed steel grades: HSS-M2 (Professional Grade) and HSS-4341 (Standard Industrial Grade).
Wholesalers can select the material grade based on their target market's specific performance-to-cost ratio:
| Feature | HSS-M2 (AISI M2) | HSS-4341 |
| Best For | Harder alloys, continuous industrial use. | General steel, DIY, and soft metals. |
| Wear Resistance | Superior (High Tungsten/Moly content). | Good (Standard industrial grade). |
| Red Hardness | Maintains sharpness up to 600°C. | Standard heat resistance. |
| Tool Life | 3x to 5x longer than 4341. | Cost-effective for medium-volume. |
| Target Materials | Carbon steel, Stainless steel, Cast iron. | Mild steel, aluminum, copper, plastic. |
| Parameter | Specification |
| Nominal Size | M3 x 0.5 (Standard Coarse) |
| Standard | DIN 352 |
| Set Configuration | 3-Piece Set (No.1, No.2, No.3) |
| Manufacturing | Fully Ground (Precision Ground Threads) |
| Tolerance Class | 6H (ISO 2) |
| Shank Diameter | 3.5 mm |
| Square Size | 2.7 mm |
| Overall Length | 40 mm |
Precision Electronics & Instrumentation: Ideal for creating high-accuracy threads in aluminum housings and small mechanical assemblies.
MRO & Repair Shops: The M3 size is essential for repairing delicate fastener threads in small engines and industrial control panels.
Risk Control for Small Sizes: Because the M3 core is thin, the 3-stage tapping process is vital. By distributing the cutting load, this set drastically reduces the chance of the tap snapping inside an expensive workpiece.
Pro-Tip for End-Users: When tapping manually with M3, always use a high-quality tapping lubricant. We recommend a "half-turn forward, quarter-turn back" rotation to break the chips and prevent the flutes from clogging.
Since 1997, our factory has optimized supply chain solutions for the global B2B market:
Branding: We offer high-definition Laser Marking on the M3 shanks (Logo + M3 + Material Grade).
Packaging: Each 3-piece set is housed in an industrial-grade Rose-Box plastic case, preventing the delicate M3 tips from chipping during transit.
Bulk Supply: Large stock levels of both M2 and 4341 grades are maintained for rapid fulfillment of 1,000+ set orders.
QC Assurance: 100% thread concentricity verification and Go/No-Go gauge testing for every batch.
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