YH1SF YG-1 M1.6×0.35 Cobalt HSS-E Tap for Electronics Threading Threading tools CNC cutting tools

YH1SF YG-1 M1.6×0.35 Cobalt HSS-E Tap for Electronics Threading

Product Overview

The YG-1 M1.6×0.35 YH1SF is a high-precision miniature metric tap from YG-1 (South Korea), designed for tapping tiny M1.6×0.35 internal threads in precision electronics, medical devices, and small mechanical components. The YH1SF denotes YG-1’s proprietary YH1 precision limit and special flute geometry, ensuring accurate thread forming, reliable chip evacuation, and long tool life in small-diameter threading.

• Brand: YG-1 (South Korea, global cutting tool manufacturer)
• Model: M1.6×0.35 YH1SF
• Tool Type: Miniature Metric Thread Tap (Straight/Spiral Flute)
• Thread Specification: M1.6 (Major Dia 1.6 mm) × 0.35 mm Pitch
• Precision Class: YH1 (YG-1’s proprietary precision for fine threads)
• Material: HSS-E (Cobalt High-Speed Steel) for heat & wear resistance
• Coating: Bright/Uncoated or TiN (optional, for friction reduction)
• Flutes: 2–3 flutes (optimized for small chips, stable cutting)
• Chamfer: Plug (2–3P) for general through/blind hole tapping
• Shank: Miniature cylindrical shank for precision holders
• Direction: Right-hand thread (standard)

• Carbon steels (1015, S15C) – primary
• Alloy steels (4140, HRC < 40)
• Stainless steels (304, 316L, soft)
• Brass & copper (easy chip evacuation)
• Aluminum alloys (light cuts, polished flutes)
• Grey cast iron (HT150, low speed)

• Miniature internal thread tapping (M1.6×0.35) in CNC precision centers
• Electronics, medical devices, watches, and small molds
• Through-hole & shallow blind-hole threading
• Mass production of micro-components requiring YH1 precision
• Dry or minimal coolant for small-diameter stability
• Finishing operations for smooth thread surface

• YH1 precision: Tight tolerance for perfect fit in miniature assemblies
• HSS-E grade: Withstands high temperatures in small-diameter cutting
• Special flute (SF): Optimized chip geometry prevents clogging in tiny holes
• YG-1 quality: Korean manufacturing, consistent performance in mass production
• Miniature design: Ideal for hard-to-reach, small-part threading