12-Pack Modified Shoulder Bundle — 847KR/016. Twelve 5-packs of the 847KR/016 modified-shoulder diamond for the price of six. KR — Korner's rounded: the internal line angles are rounded, not the tip. The 1.2 mm end refines the shoulder; rounded internal corners cut clean without dragging. Each bundle is twelve packs of a single grit — pick the grit at add-to-cart.
SPEC: Shape: Modified Shoulder (847KR/016) · Head: 1.6 mm · Tip: 1.2 mm · Head length: 8 mm · Shank: FG (1.6 mm friction-grip) · Pack: 12 packs × 5 burs.
OPERATING SPEC — FG & FGSS SHANK. 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 |
| 1.2–1.4 | 60,000–110,000 rpm |
| 1.5–1.8 | 45,000–88,000 rpm ◄ this head size |
| 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.
Limit: 5 bundles per order. 12% of bundle proceeds go to the fundraiser that brought you here. No additional coupon codes or discounts can be applied to this item. Ships within 7–9 days. Taxed where applicable.
SAME FAMILY — 847KR/016 ACROSS LINES. Same head, same grit system, different shank or line:
D847KR/016 — FG diamond — standard shank
DDS847KR/016 — bulk 100/pk
DV847KR/016 — TWOoth Series — 30/pk
GD847KR/016 — Gold series FG diamond
SD847KR/016 — short shank diamond — posterior access
TD847KR/016 — Turbo series
Item 847KR/016.
