DIY Ready Tap And Drill Bit Set Includes One 8 40 UN Straight Flute Tap And One 3.5mm Twist Drill Bit In Black Oxide HSS 6542 For DIY Tapping And Threading Projects The Handy Tapping Tool Kit
✔️ 2-piece kit with straight flute 8-40 UN tap and 3.5mm HSS drill
This DIY ready tap and drill bit set provides a compact two-piece toolkit for threading holes in metal and hard plastics. It’s ideal for through holes and shallow blind holes, and is commonly used with drill presses or tapping machines. The 6542 high speed steel parts offer solid hardness, wear resistance, and clean thread cutting, with a black oxide finish to boost durability. Use tapping oil to improve thread quality and extend tool life.
✅ 1pcs Straight Flute Tap 8-40 UN (right hand); thread length 19 mm / 0.75"; square shank 3.85 mm / 0.15"; total length 56 mm / 2.2"
✅ 1pcs Twist Drill Bit 3.5 mm; cutting edge length 36 mm / 1.42"; shank dia 3.5 mm; total length 70 mm / 2.76"
✅ 6542 HSS with black oxide coating for durability, corrosion resistance, and lubricity
✅ Suitable for cast iron, aluminum, stainless steel, carbon steel, aluminum alloy, bronze and hard plastics; use with tapping oil
💡 What is a tap and drill set used for in DIY tapping and threading projects?
This handy guide explains common uses and setup for accurate threads.
- creates new threads in metal or hard plastics for screws
- repairs damaged threads and re-taps jammed holes in metal
- works best with drill press or tapping machine and proper lubrication
- ideal for through holes and shallow blind holes