HSS Bright Finish UNC Hand and Machine Bottoming Tap Unified National Coarse thread form was introduced in 1948 These general purpose taps are ideal for creating new
LEFT HAND HSS Bright Finish UNC Hand and Machine Bottoming Tap. HSS taps provide a high hardness to toughness ratio, compressive and tensile strength, good abrasion resistance and resistance to micro-chipping, ensuring a long tool life. These general purpose taps are ideal for creating new threads in a wide variety of materials. HSS Straight Flute Short Machine and Hand Taps.
