Halls XCM High Speed Steel Countersink 12.4mm

About this tool

The Halls XCM High Speed Steel Countersink in 12.4mm size is perfect for larger countersunk fasteners commonly found in heavy fabrication, automotive chassis work, and industrial machinery assembly. This larger diameter countersink handles M8 and M10 countersunk screws with ease, making it indispensable for structural engineering and heavy-duty metalworking applications. The high speed steel construction ensures this 12.4mm countersink maintains its cutting edge even under demanding conditions, whilst the 3-flute design provides efficient material removal and superior finish quality. The precision-ground 90° included angle creates perfectly matched chamfers for flush-fitting fasteners in thick steel plates and heavy-gauge materials. Equipped with a 1/4in hexagon shank for universal power tool compatibility, this countersink delivers professional results on substantial metalwork projects where reliability and consistency are paramount. Features and Benefits: • 12.4mm diameter suitable for M8 and M10 fasteners • High speed steel for durability in demanding applications • 3-flute configuration ensures clean cutting action • 90° angle for standard countersunk profiles • 1/4in hex shank fits all power tools • Excellent for heavy-duty fabrication and structural work Specifications: Countersink Type: Countersink Size (mm): 12.4

Retailer description · Tooled Up · Observed 12 Oct 2026. Check the retailer’s listing for full specifications and contents.