Triangular Drill Bit (Multi-Function Twist) M4 Chrome Steel — stocked and shipped worldwide by SFX Fasteners. Available for single-piece retail orders — no minimum order — dispatched from our own warehouse within 24–48 hours.
Specifications
| Material | Chrome Steel |
| Diameter | M4 |
| Surface Finish | Hardened |
| Brand | SFX Fasteners |
Ordering & shipping
| Minimum order | No minimum — single pieces welcome |
| Pricing | Order totals are confirmed at checkout, before payment |
| Custom & dropship | Small batches to drawing · blind dropshipping on request |
| Dispatch | 24–48 hours for stock items |
| Shipping | Worldwide, calculated at checkout by weight and destination |
Need a specific size, grade or standard? Send us a quote request — we quote to drawing and to DIN / ANSI / GB / JIS standards.
About this tool
This is a tool in Chrome Steel, supplied hardened, with an M4 thread. Every dimension is stated against the standard named above; where a tolerance class matters to your design, ask us and we will confirm it in writing before you order.
A fitting, driving or measuring tool matched to the fastener sizes we stock, so the drive and the head are known to fit before you buy. Used for installation and inspection work, and for checking thread and dimension before an order goes into production.
M4 is a metric thread with an 4 mm nominal diameter and a coarse pitch of 0.7 mm (ISO 261). A standard hex head takes a 7 mm spanner across the flats.
Hardened as supplied on this line. Ask us for the coating thickness and the salt-spray hours if the finish has to pass an inspection.
Is this not quite the size or grade you need? Ask us — we produce small batches to drawing and to DIN, ISO, GB and JIS standards, and we consolidate pallet and container loads for trade orders.

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