The Wera 844 Hex Shank Thread Tap in M4 Taper configuration is a dependable choice for cutting accurate metric M4 threads in a variety of materials. The Taper tap style makes it well suited to starting threads cleanly, particularly in through-holes and applications where thread alignment is critical. Fitted with a ¼" hexagonal shaft, this tap bit connects securely to any DIN ISO 1173-D 6.3 compatible holder, ensuring positive engagement and reliable power transfer throughout the cutting process. The finely-tuned material elasticity provides excellent resistance to breakage, while the precision geometry promotes effective chip removal and a smooth, controlled return stroke. Features and Benefits: • M4 Taper configuration for clean, accurate metric threading • ¼" hex shaft for positive power transfer and reduced slippage • Finely-tuned material elasticity for great durability • Very good centring properties for a low tilt risk • Perfect chip removal and precise return movement • Compatible with DIN ISO 1173-D 6.3 holders Contents: 844 Single Tap Bit, 4 mm x 35 mm x M4 Specifications: • Configuration: M4 • Size: Taper