NIC® KD Blue
Sixteen constant-taper configurations (15-50 in .04 and .06) run at 500 RPM with graduated per-file torque from 0.75 to 3.6 Ncm
Continuous Rotation · MaxTech 6.0 Blue Heat-Treated NiTirpm
0.75–3.6
Ncm
File16Verified
Specifications
Tap icons for term definitions
KD4 (.04)
0.15 · 4%500 · 0.75
0.20 · 4%500 · 0.75
0.25 · 4%500 · 1.0
0.30 · 4%500 · 1.0
0.35 · 4%500 · 1.3
0.40 · 4%500 · 1.3
45/.040.45 · 4%500 · 1.3
50/.040.50 · 4%500 · 1.3
KD6 (.06)
0.15 · 6%500 · 1.9
0.20 · 6%500 · 1.9
0.25 · 6%500 · 2.85
0.30 · 6%500 · 2.85
0.35 · 6%500 · 3.6
0.40 · 6%500 · 3.6
45/.060.45 · 6%500 · 3.6
50/.060.50 · 6%500 · 3.6
| File | Tip | Taper | Speed rpm | Torque Ncm |
|---|---|---|---|---|
| KD4 (.04) | ||||
| 0.15 | 4% | 500 | 0.75 | |
| 0.20 | 4% | 500 | 0.75 | |
| 0.25 | 4% | 500 | 1.0 | |
| 0.30 | 4% | 500 | 1.0 | |
| 0.35 | 4% | 500 | 1.3 | |
| 0.40 | 4% | 500 | 1.3 | |
| 45/.04 | 0.45 | 4% | 500 | 1.3 |
| 50/.04 | 0.50 | 4% | 500 | 1.3 |
| KD6 (.06) | ||||
| 0.15 | 6% | 500 | 1.9 | |
| 0.20 | 6% | 500 | 1.9 | |
| 0.25 | 6% | 500 | 2.85 | |
| 0.30 | 6% | 500 | 2.85 | |
| 0.35 | 6% | 500 | 3.6 | |
| 0.40 | 6% | 500 | 3.6 | |
| 45/.06 | 0.45 | 6% | 500 | 3.6 |
| 50/.06 | 0.50 | 6% | 500 | 3.6 |
Clinical Tips
All sixteen files run at 500 RPM, but torque is file-specific per the manufacturer's fact sheet (2026-08-12): .04 taper files use 0.75 Ncm (15, 20), 1.0 Ncm (25, 30) and 1.3 Ncm (35-50); .06 taper files use 1.9 Ncm (15, 20), 2.85 Ncm (25, 30) and 3.6 Ncm (35-50)
The IFU warns explicitly against applying one torque value to every size and taper — set the motor per file
The fact sheet's per-file torques refine the IFU draft's rounded values and supersede the 2025 catalog's crude 2-5 Ncm range (the .04 values sit below that range entirely)
Taper selection doctrine per the IFU: .04 for curved mid-root and apical regions where flexibility and conservative enlargement are priorities; .06 selectively for straighter canals, mild-to-moderate curvature, or coronal shaping
MaxTech 6.0 blue heat treatment: naturally reduced shape memory, gently pre-bendable for access, positioned for curvature up to ~30° — manufacturer claims, not independently verified
Convex triangular cross-section with a non-cutting guiding tip; maximum flute diameter 0.8-1.4 mm across the range per the manufacturer's fact sheet and direct confirmation (2026-08)
NIC's own cross-reference table maps the KD File to Vortex Blue, including the 500 RPM speed — a manufacturer-claimed correspondence, not independently verified
Crown-down entry logic per the IFU: small canals start at 30/.04, larger canals at 40/.04, stepping down on resistance rather than forcing
Supplied 6 instruments per pack (IFU)
The 45 and 50 configurations in both tapers are listed on the manufacturer's fact sheet (2026-08-12) and have no product render yet
Specifications on this page come from the manufacturer's consolidated fact sheet (2026-08-12, the controlling source), IFU draft (2026), and 2025 catalog; no independent peer-reviewed performance data exists for this system (PubMed, 2026-08-11)
Warnings
- Single-use only per the manufacturer's IFU — reuse may increase the risk of cross-contamination, loss of cutting efficiency, or file separation
- Supplied non-sterile in this version: sterilize before first clinical use (steam autoclave 134 °C, 18 min holding time per the IFU) and discard after the procedure
- Use only in continuous clockwise rotation with a torque-controlled motor — the IFU directs against reciprocating motion
- Set the file-specific torque from the manufacturer's current tables; do not run the whole matrix on one torque value (IFU)
- Do not use a file from a damaged package, or any instrument showing deformation, unwinding, corrosion, fracture, or wear (IFU)
- Avoid apical pressure: when resistance appears before working length, step down a size instead of forcing (IFU)
- Contains nickel — the IFU contraindicates use in patients with known nickel/NiTi allergic sensitivity
- The IFU contraindicates mechanical use in canals with severe, sudden apical curvatures, complex canal divisions, calcified anatomy, or anatomy where safe passive file progression cannot be achieved
Obturation Techniques
Single cone, warm vertical, carrier-based & lateral compaction
Protocol
01Glide Path2
02Shaping2
03Finishing2
Related Systems
From NIC Dental Systems
Manufacturer page
NIC Dental SystemsOther continuous rotation systems
Motion category
Continuous RotationComparisons
Alloy
Blue Heat TreatmentCollections
Clinical guides
Frequently Asked Questions
01What alloy is NIC KD Blue made from?
01
What alloy is NIC KD Blue made from?
Answer
NIC® KD Blue is manufactured from MaxTech 6.
- 010 Blue Heat-Treated NiTi with blue heat treatment.
02How many files are in the NIC KD Blue sequence?
02
How many files are in the NIC KD Blue sequence?
Answer
The NIC® KD Blue system includes 16 files: 15/.
- 0104, 20/.
- 0204, 25/.
- 0304, 30/.
- 0404, 35/.
- 0504, 40/.
- 0604, 45/.
- 0704, 50/.
- 0804, 15/.
- 0906, 20/.
- 1006, 25/.
- 1106, 30/.
- 1206, 35/.
- 1306, 40/.
- 1406, 45/.
- 1506, 50/.
- 1606.
03What motion type does NIC KD Blue use?
03
What motion type does NIC KD Blue use?
Answer
NIC® KD Blue uses continuous rotation motion.
04What cases is NIC KD Blue best for?
04
What cases is NIC KD Blue best for?
Answer
NIC® KD Blue is best suited for: crown-down shaping with a broad size matrix, file-specific torque discipline per the IFU, conservative .
- 0104 taper option for curved canals.
05What speed and torque settings are recommended for NIC KD Blue?
05
What speed and torque settings are recommended for NIC KD Blue?
Answer
Recommended settings: 500 RPM and 0.
- 0175 / 1.
- 020 / 1.
- 033 / 1.
- 049 / 2.
- 0585 / 3.
- 066 Ncm across the file sequence (refer to official DFU for full per-file parameters).
Reviewed by
Uzm. Dt. Levent Yüksel
DDS · Endodontist
Independently authored and clinically reviewed.
Powered by:Uzm. Dt. Levent Yüksel