All In One Spiral Step Drill Bit Set For Metal Drilling And Chamfering HSS Counterbore Step Bits With 90 Degree And 180 Degree Stages Reaming And Chamfering Functions For Faster Cleaner Holes In Metal M8 Size

All-in-One Spiral Step Drill Bit for Metal M8 1 Pc
✔️ 90°/180° stages, HSS countersunk head, M3-M10 sizes

This all-in-one spiral step drill bit blends drilling, reaming, and chamfering into a single tool, letting you create clean holes quickly in metal and alloys. It's ideal for workshops and fabrication tasks where you need to stop swapping bits for different hole sizes.

✅ Material: HSS
✅ Function: drilling, reaming, and chamfering in one bit
✅ Second stage: 90° or 180° for different hole sizes
✅ Sizes: M3, M4, M5, M6, M8, M10
✅ Length: varies by batch production, but performance stays reliable

💡 What is a spiral step drill bit used for in metalworking and hole deburring tasks? A handy explanation for common workshop tasks. - Handy for drilling and deburring holes in metal and non-metal workpieces - Combines drilling, reaming, and chamfering for tidy holes in a single tool - Great for projects needing hole-size changes without swapping bits