3-Piece Umbrella Drill Bit Set for Fast, Clean Drilling
✔️ HSS 4241, 8/10mm shanks; sizes 16-30.5mm, 5-20mm range
This umbrella drill bit set is a compact 3-piece kit built for fast, smooth cutting in wood, plastic, and metal. It’s ideal for DIY home projects and general building tasks where clean holes and minimal deburring matter.
✅ Shank sizes: 8mm and 10mm (5/16 in. and 3/8 in.)
✅ Material: HSS 4241 high-speed steel for long life
✅ Design: umbrella-style stepped drill with auto-deburr for smoother holes
✅ Applications: wood, plastic, and metal drilling with smooth cuts
✅ Sizes included: 14mm, 20mm, 30.5mm with 8mm/10mm shanks
✅ Finish: silver-tone finish for visibility and corrosion resistance
💡 What is an umbrella drill bit used for in DIY projects?
- handy for making clean holes in wood, plastic, and metal
- supports step drilling and cone chamfer cuts for neat edges
- works with 8mm or 10mm shanks on standard drills
- saves time by deburring automatically and giving a smooth finish
