SGD889/007: trim & finish diamonds — the 889 series in the gold line, short shank. The 0.7 mm head trims and finishes where a standard-length shank is too long. Gold series: natural diamond, multi-layer bonded, uniform particle distribution. Pack of 5 burs.
SPEC: Series: 889 trim & finish · Head: 0.7 mm · Head length: 3 mm · Shank: short shank friction-grip · Line: Gold · Pack: 5 burs.
AVAILABLE GRITS: C · M · F · EF — select at add-to-cart.
OPERATING SPEC — SHORT SHANK FRICTION-GRIP. Recommended operating speed is set by head diameter. Apply the diamond to the surface only after reaching operating speed.
| HEAD DIAMETER (mm) | RECOMMENDED SPEED (rpm) |
|---|---|
| 0.6–1.0 | 75,000–150,000 rpm ◄ this head size |
| 1.2–1.4 | 60,000–110,000 rpm |
| 1.5–1.8 | 45,000–88,000 rpm |
| 2.0–2.3 | 40,000–75,000 rpm |
| 2.4–2.7 | 30,000–65,000 rpm |
| 2.9–3.1 | 25,000–56,000 rpm |
| 3.2–4.0 | 22,000–45,000 rpm |
| 4.2–5.2 | 20,000–37,000 rpm |
Recommended contact pressure: 0.3–2 N — let the diamond do the work. Water spray is essential: minimum 50 ml/min; heads over 2 mm with working lengths over 21 mm require additional cooling.
GRIT CODE — ONE CODE, ONE COLOR, ACROSS THE FULL DENTPS DIAMOND LINE. The color squares on the product image and in this legend share the same coding.
SAME FAMILY — 889/007 ACROSS LINES. Same head, same grit system, different shank or line: D889/007 — FG friction-grip GD889/007 — Gold series FG diamond SD889/007 — Short shank Item SGD889/007.
