The Fox-Komet H253B Carbide Hart 90 Degree Bur Kit gives jewelers and metalsmiths a complete range of precision hart (heart) burs engineered specifically for demanding hard alloys. Carbide construction makes these burs exceptionally well-suited for setting work and seat cutting in white gold, platinum, and steel — materials that quickly dull standard high-speed steel burs. The kit spans ten incremental sizes from 0.90mm to 1.80mm, providing a finely graduated selection for precise stone-seat work. All burs mount on a 3/32" shank, compatible with standard flex-shaft handpieces and pendant motors.
Features
- Carbide construction engineered for hard alloys including white gold, platinum, and steel
- 90-degree hart bur geometry for accurate V-seat and prong-seat cutting
- Ten graduated sizes in a single kit — 0.90mm through 1.80mm in 0.10mm increments
- 3/32" shank fits standard flex-shaft handpieces and pendant motors
- One bur of each size included — no duplicates
Specifications
| Bur Type |
Hart (Heart), 90 Degree |
| Material |
Carbide |
| Shank Size |
3/32" |
| Size Range |
0.90mm – 1.80mm |
| Pieces in Kit |
10 |
| Recommended Applications |
Hard alloys — white gold, platinum, steel |
What's Included
- FCH118.009 — 0.90mm
- FCH118.010 — 1.00mm
- FCH118.011 — 1.10mm
- FCH118.012 — 1.20mm
- FCH118.013 — 1.30mm
- FCH118.014 — 1.40mm
- FCH118.015 — 1.50mm
- FCH118.016 — 1.60mm
- FCH118.017 — 1.70mm
- FCH118.018 — 1.80mm
