Dormer HSS Duo M4 Second Tap and A002 Drill Bit DORE500M4N2

This is a two-piece manual tapping set designed for threading in various materials. Each pack includes a tap and its corresponding pre-hole drill, specifically sized for M4 threading. The tools are suitable for DIY and home improvement projects, offering clear guidance on drilling and threading to create internal threads in metal, plastic, or other materials. The taps support through-hole and blind-hole applications, aligning with ISO standards for threading up to 1.5 times the diameter. The high-speed steel components are designed for better hardness in typical manual use, with features intended to ease centering and penetration.

Features

• Includes tap and pre-hole drill in one package
• M4 thread size with second-tap or plug-tap options
• Threads up to 1.5x diameter (ISO standard)
• Split-point jobber drill with 118 degrees for self-centering
• High Speed Steel (HSS) with straight flute
• Bright finish reduces built-up edge on sticky materials