Cleveland C54303 Hand Tap M4.5x0.75 Taper Rh D4 Hss

Product Description

The CLEVELAND C54303 is a straight-flute hand tap designed for threading M4.5 x 0.75 metric coarse internal threads in both blind holes and through-holes. It is manufactured from high speed steel with a bright uncoated finish and features a taper chamfer for easy thread-starting engagement. The 4-flute geometry provides balanced cutting action and chip clearance during manual tapping operations. With an overall length of 2.375 inches and a thread length of 0.5 inches, this tap is sized for compact fastener applications in precision machined components. It carries a Class of Fit 6H and a D4 thread limit, making it appropriate for standard tolerance metric threaded features.

This tap is suited for manual hand tapping operations in machine shops, maintenance environments, and production settings where M4.5 x 0.75 metric threads are required. The taper chamfer style makes it the correct choice for starting a thread in a new hole. It is rated for use in alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces, covering a broad range of common shop materials. The straight flute design performs well in through-hole applications and shorter blind hole depths where chip evacuation is manageable.

Key Features

• M4.5 x 0.75 metric coarse thread form, right-hand cut
• Taper chamfer for reliable thread starting in new holes
• High speed steel construction for durability across common workpiece materials
• Bright uncoated finish suitable for use with standard cutting fluids
• 4-flute straight flute geometry for balanced cutting and chip clearance
• Class of Fit 6H with D4 thread limit for standard metric tolerance requirements

Compatibility

Rated for threading alloy steel, carbon steel, aluminum, and free-machining stainless steel. Suitable for both blind hole and through-hole threading applications requiring M4.5 x 0.75 metric coarse threads per the 6H class of fit standard.

Installation Notes

This tap is intended for hand tapping operations performed by machinists, maintenance technicians, or toolroom personnel. Always secure the workpiece firmly and use a tap wrench aligned perpendicular to the work surface to avoid tap breakage. Apply an appropriate cutting fluid for the workpiece material before and during tapping. For blind holes, monitor thread depth carefully and clear chips frequently to prevent tap binding.