Center Drill Jig For Pearls And Beads Aligns Sphere Holes With Spot On Accuracy Perfect For One Millimeter Bits Holds Gems From Three To Twenty Two Millimeters Hella Reliable Gear For Jewelers And Crafters Who Demand Straight Up Precision
✔️ Fits spheres 3 to 22 mm with hardened steel alignment guide
This center drill jig is a compact hand tool built for jewelers and hobbyists who need to punch exact center holes in curved stones or glass charms. You set the round object in the groove, drop your tiny carbide bit through the top sleeve, and immediately get straight bores without guesswork. It is a handy little setup that keeps one millimeter drills locked on target whether you are working on a rotary table or a bench vise.
✅ Hardened brass bushing keeps tiny bits from wandering during initial contact✅ Tapered v channel grips spherical items ranging from 3 mm to 22 mm
✅ Flat bottom plate provides solid support for vertical pressure feeding
✅ Lightweight black alloy construction stays quiet and stable on any work surface
💡 How to drill perfectly centered holes for stringing beads without damaging fragile spheres?
Using a fixed alignment fixture removes the guesswork and keeps your tiny cutters from slipping on curved surfaces. This simple setup forces the drill bit to follow a strict vertical path straight through the geometric midpoint. Here is how it upgrades your workflow:
- Guided track locks one millimeter bits in place for consistent pilot penetration
- Rigid base stops torque from tipping over loose cabochons during spinning
- Steady feed pressure creates clean exit tunnels that leave smooth metal rims
- Repeatable positioning speeds up bulk polishing jobs for custom storefront pieces