What alloy is K3XF made from?

K3XF™ is manufactured from R-Phase™ Heat-Treated NiTi with r-phase heat treatment.

How many files are in the K3XF sequence?

The K3XF™ system includes 24 files: 15/.04, 20/.04, 25/.04, 30/.04, 35/.04, 40/.04, 15/.06, 20/.06, 25/.06, 30/.06, 35/.06, 40/.06, 20/.08, 25/.08, 30/.08, 40/.08, 20/.10, 25/.10, 30/.10, 40/.10, 20/.12, 25/.12, 30/.12, 40/.12.

What motion type does K3XF use?

K3XF™ uses continuous rotation motion.

What cases is K3XF best for?

K3XF™ is best suited for: versatile multi-taper rotary shaping, clinicians familiar with K3 technique, cases requiring wide taper selection (.04-.12).

What speed and torque settings are recommended for K3XF?

Recommended settings: 350 RPM RPM and 3.00 Ncm Ncm across the file sequence (refer to official DFU for full per-file parameters).

K3XF™

Kerr Endodontics

Continuous Rotation

K3XF™

Original K3 asymmetric triple-fluted design enhanced with R-Phase heat treatment for improved flexibility and cyclic fatigue resistance

AlloyR-Phase™ Heat-Treated NiTiFile24

Specifications

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File	Tip	Taper	Speed rpm	Torque Ncm
15/.04	0.15	4%	350 RPM	3.00 Ncm
20/.04	0.20	4%	350 RPM	3.00 Ncm
25/.04	0.25	4%	350 RPM	3.00 Ncm
30/.04	0.30	4%	350 RPM	3.00 Ncm
35/.04	0.35	4%	350 RPM	3.00 Ncm
40/.04	0.40	4%	350 RPM	3.00 Ncm
15/.06	0.15	6%	350 RPM	3.00 Ncm
20/.06	0.20	6%	350 RPM	3.00 Ncm
25/.06	0.25	6%	350 RPM	3.00 Ncm
30/.06	0.30	6%	350 RPM	3.00 Ncm
35/.06	0.35	6%	350 RPM	3.00 Ncm
40/.06	0.40	6%	350 RPM	3.00 Ncm
20/.08	0.20	8%	350 RPM	3.00 Ncm
25/.08	0.25	8%	350 RPM	3.00 Ncm
30/.08	0.30	8%	350 RPM	3.00 Ncm
40/.08	0.40	8%	350 RPM	3.00 Ncm
20/.10	0.20	10%	350 RPM	3.00 Ncm
25/.10	0.25	10%	350 RPM	3.00 Ncm
30/.10	0.30	10%	350 RPM	3.00 Ncm
40/.10	0.40	10%	350 RPM	3.00 Ncm
20/.12	0.20	12%	350 RPM	3.00 Ncm
25/.12	0.25	12%	350 RPM	3.00 Ncm
30/.12	0.30	12%	350 RPM	3.00 Ncm
40/.12	0.40	12%	350 RPM	3.00 Ncm

Clinical Tips

Same proven K3 asymmetric triple-fluted design plus R-Phase heat treatment for added flexibility and cyclic fatigue resistance (per product page)

R-Phase technology — post-machining heat treatment (ground, not twisted) transforms NiTi for improved properties (per Kerr summary)

Asymmetric cross-section: wide radial land with recessed trailing edge reduces friction, third radial land provides centering (per K3 brochure)

Variable pitch design reduces screw-in effect and channels debris coronally (per K3 brochure)

Positive rake angle for active cutting action (per K3 brochure)

Available in 6 tapers (.04 through .12) with tip sizes from 15 to 60 — highly versatile system

Compatible with Elements Motor preset: 350 RPM / 3.00 Ncm (per Elements e-motion IFU)

Safe-ended (non-cutting) tip follows canal shape while helping to reduce apical transportation

.10 and .12 taper files available in 17mm length for improved posterior access

Warnings

Contains nickel — do not use on patients with known nickel allergy
Inspect files for deformation or wear before each use
Do not force instruments to working length — use very light pressure
Irrigate copiously and frequently throughout the procedure
Clean flutes frequently and at least after each removal from the canal
Use only in electric motor and handpiece designed for rotary files

Obturation Techniques

Single cone, warm vertical, carrier-based & lateral compaction

Protocol

01Glide Path

02Shaping

03Finishing

Related Systems

From Kerr Dental Systems

TF Adaptive ZenFlex Traverse

Manufacturer page

Kerr Dental Systems

Other continuous rotation systems

ProTaper Gold ProTaper Ultimate ProTaper Next

Motion category

Continuous Rotation

Comparisons

Alloy

R-Phase NiTi (Twisted)

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