135° Top Angle Design Adopt 135° top angle design, sharp and labor-saving, to ensure the positioning of high-speed steel in the drilling hole.
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9.9 & HSS 9.9 means that the diameter of the twist drill bit is 9.9mm, hss means that the material is hss stainless steel.
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ST3/8-16 & HSS ST3/8-16 means that the type of the cutting tap is 3/8-16, hss means that the material is hss stainless steel.
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High Quality Thread The cutting tap is made of hss stainless steel, protect and maintain good threading from wear and tear.
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