YG-1 says its Combo tap effectively eliminates oversize threading problems that can occur with high-helix spiral-fluted taps. It is designed to prevent shavings from wrapping around the tap shank, creating a safer environment for the machine operator. The taps are available in inch series ranging from # 4 to 1.00, and metric sizes from 3 to 24 mm. Both bright and TiCN coatings are available. The taps are suitable for use with most metals, the company says.