Product Features：
This series of tap and twist drill sets is made of high-speed steel W6542,targeted designs, balancing hardness, wear resistance and processing precision. Taps ensure smooth chip removal and clear thread formation; drills provide smooth drilling, suitable for various metals, meeting needs from daily DIY to industrial processing.
Usage Instructions：
First drill a hole in the material with the twist drill, selecting the corresponding diameter according to the tap specification (e.g., M3*0.5 matches 3mm drill);
Keep vertical during drilling, adjust speed based on material hardness (low speed for hard metals, moderate speed for soft metals), and add cutting fluid for cooling;
Align the tap vertically with the hole center during tapping, rotate slowly—retreat 1/4 turn after every 1 full forward turn to remove chips, avoiding jamming and tool damage;
It is recommended to use lubricant during processing to extend tool life and improve thread quality.
Application Scenarios：
Suitable for processing carbon steel, cast iron, stainless steel, aluminum, copper, alloys and other metals, widely used in automotive repair, electronic equipment assembly, machinery manufacturing, furniture installation, pipe repair, DIY crafts, etc. Solves problems like poor chip removal, rough threads, and easy wear of traditional tools, making tapping and drilling more efficient with precise threads, improving processing quality and efficiency.