Quick facts
- Brand: VALYRIANTOOL
- Price: USD 15.59
- Rating: 4.50 (150 reviews)
If you need reach for deep or hard-to-access holes, the VALYRIANTOOL Aircraft Extension Drill Bits Set delivers an extra-long 12-inch overall length in a commonly used 1/8-inch diameter. This 5-piece set is built from M35 high speed steel with 5% cobalt to boost wear resistance and durability—especially helpful when working with tougher materials.
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The fully ground spiral flute design is made to clear chips efficiently while reducing friction and heat buildup. A 135-degree split point with a straight shank helps reduce walking for more precise starts—often without needing a center punch—making this set a practical pick for maintenance, fabrication, and DIY jobs where standard-length bits can’t reach.
Recommended uses: stainless steel, steel, sheet metal, cast iron, aluminum alloy, plastic, wood, and other softer metals. For best results, control speed, pressure, and heat during drilling.
- 5-piece set of 1/8″ aircraft extension bits (12″ overall length) for deep-hole reach
- M35 high speed steel with 5% cobalt for improved wear resistance and durability
- Fully ground spiral flutes help clear chips quickly and reduce friction/heat
- 135° split point and straight shank help prevent walking for faster, more accurate starts
- Works on metal, plastic, and wood; backed by a 90-day refund or replacement policy
Whether you’re drilling through metal stock or reaching into tight assemblies, this long-reach 1/8″ set offers a balance of precision, durability, and value—especially considering you get five matching bits for repeat jobs or spares.
