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M11×2.0 4-Flute & M8×1.25 3-Flute Thread Tap Set – O2 Sensor & Spark Plug Thread Chaser,Thread Cleaning,High Precision M2 Steel with TIN Coating,Thread Clean Tap for Engine Bolts

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  • Premium M2 Steel with TIN Coating – Made from high-strength M2 steel with durable TIN surface, providing superior wear resistance, smooth cutting, and long-lasting performance.
  • Dual Flute Design – 4-flute M11×2.0 for large bolts and 3-flute M8×1.25 for smaller threads like spark plugs and O2 sensors; optimized for fast chip removal and precise thread restoration.
  • Versatile Thread Chaser Set – Perfect for cleaning, repairing, or restoring engine head bolts, O2 sensor threads, spark plug threads, and other threaded holes.
  • High Performance & Durable – Heat-treated M2 steel ensures hardness, toughness, and corrosion resistance; works on steel, aluminum, stainless steel, and other metals.
  • Essential Engine Maintenance Tool – Compatible with LS engines, GM engines, and other motors; ideal for mechanics, DIYers, and performance rebuilds.

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Thread Milling Taps

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Upgrade your engine maintenance toolkit with this dual-thread chaser set, including M11×2.0 4-flute and M8×1.25 3-flute taps, crafted from high-quality M2 steel with a TIN coating. The four-flute M11 tap provides smooth cutting for larger bolts, while the three-flute M8 tap is ideal for smaller threads like spark plugs and O2 sensors. This set efficiently cleans and restores engine threads, prevents cross-threading, and ensures proper fit for head bolts, sensors, and plugs. A must-have for LS engines, GM engines, and all M11/M8 threaded applications, perfect for mechanics, performance rebuilds, and DIY enthusiasts.

Specifications

Main Specification
Manufacturer TurtBluse
Brand TurtBluse
Item Package Quantity 2
Size M11*2.0+M8*1.25
Item Weight 3.52 Ounces
Product information
Package Dimensions 8.31 x 2.24 x 0.67 inches
Technical Details
Part Number A005-M11+M8
Others
Date First Available 2026, January 22
Product Type Thread Milling Taps
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Thread Milling Taps