Hollow Core Diamond Drill Bit Set

This is the Burfitt 10-Piece Micro-Precision Diamond Burr Set. I originally sourced these exact profiles for precision dental labs. Now, I’ve re-packaged them for lapidary work, gemstone carving, and scale model engineering.

They are made from hardened stainless steel. They won’t warp under load. The diamond grit is bonded aggressively to the core to chew through jade, sea glass, ceramics, and hardened alloys.

What You Get (10 Unique Profiles):

• Small & Medium Flat Cylinders (3.0mm & 3.3mm): For straight slotting and notch cutting.

• Large Flat Drum (5.0mm) & Large Wheel (5.2mm): Heavy material removal and drum sanding.

• Tapered Flame & Cone (2.4mm): Beveling and hole countersinking.

• Micro Cylinder Tip (2.6mm): Precision channel routing in tight corners.

• End-Cut Cylinder Rod (2.4mm): Bottom-face flat milling.

• Twin Fine Needle Flames (1.6mm taper): Hairline scribing and micro-grooving.

Specs & Dimensions:

• Shank Diameter: 2.35mm (3/32″).

• Total Length: 54mm – 63mm.

• Compatibility: Fits keyless handpieces, FOREDOM, Marathon, and standard Dremel tools (simply swap to your #481 3/32″ collet or use a keyless chuck).

• Material: Hardened stainless steel cores with industrial diamond coating.

Burfitt Bonus: Know a frustrated modeler or jeweler using rubbish tools? Grab an extra set. It makes a cracking little precision gift that actually works.

--