Maykestag HSS-Co5 Machine Tap M22 x 2.5 Straight Fluted DIN 376 Code 4803

Product information

Maykestag HSS-Co5 Machine Tap M22 x 2.5 Straight Fluted Professional M22 x 2.5 metric machine tap manufactured from HSS-Co5, featuring straight flutes, a Form B chamfer and ISO 2 (6H) thread tolerance. Designed for accurate, reliable production of metric ISO threads in through holes across a versatile range of engineering materials. The Maykestag Code 4803 M22 machine tap is a precision threading tool for producing M22 x 2.5 metric ISO internal threads in through-hole applications. Its straight-fluted geometry provides a strong and dependable cutting form, while the Form B chamfer of 3.5–5 pitches introduces the cutting load gradually across several teeth for controlled thread generation. Manufactured from HSS-Co5 cobalt-alloyed high-speed steel , the tap combines toughness with improved resistance to heat and cutting-edge wear. The M22 version follows DIN 376 dimensional requirements and is designed to produce an internal thread to the widely used ISO 2 (6H) tolerance class. What is a straight-fluted machine tap? A straight-fluted machine tap has flutes running parallel with the centreline of the tool. This creates a robust cutting geometry with generous flute space and strong cutting teeth. On the Maykestag Code 4803, the straight-fluted design is combined with a Form B chamfer, making the tap particularly suitable for machine tapping through holes where the cutting end can pass beyond the underside of the workpiece. Product highlights • M22 x 2.5 metric thread: Produces an M22 metric ISO internal thread with a 2.5mm pitch. • HSS-Co5 construction: Cobalt-alloyed high-speed steel provides an excellent balance of toughness, heat resistance and wear resistance. • Straight-fluted geometry: Strong and proven cutting design for dependable professional machine tapping. • Form B chamfer: 3.5–5 pitch lead provides gradual cutting engagement and is especially suited to through-hole tapping. • ISO 2 (6H) tolerance: Produces a standard general-purpose metric internal thread tolerance widely used in engineering. • DIN 376: Manufactured to the dimensional standard applicable to this larger machine-tap size. • Through-hole application: Intended for tapping holes that continue completely through the workpiece. • 19.5mm tap drill: Maykestag specifies a 19.5mm pre-drilled hole for this M22 x 2.5 tap. • Green ring classification: Quickly identifies the tool as part of Maykestag's versatile universal application range. Why Choose Maykestag? Maykestag is an Austrian cutting-tool specialist focused on precision-manufactured tooling for professional machining. With thread-cutting tools, carefully controlled geometry, dimensional accuracy and the correct tool material are especially important because even small variations can influence cutting torque, thread quality and tool life. The Code 4803 series combines durable HSS-Co5 material with straight-fluted geometry, a Form B chamfer and ISO 2 (6H) thread accuracy. This makes it a dependable solution for engineering workshops, maintenance departments and production environments that require consistent, repeatable metric threads. Designed for Reliable M22 Thread Production This M22 version features a 2.5mm thread pitch , 140mm overall length and 32mm thread length . Its 18mm shank and 14.5mm square provide a substantial drive section for compatible machine-tapping equipment, while Maykestag specifies a 19.5mm tap-drill diameter . Accurate hole preparation, correct tool alignment, suitable cutting lubricant and the appropriate machining parameters all help reduce tapping torque and promote clean, consistent thread formation.

Category: Drilling > Threading > Taps