SEKT Inserts Manufacturer & Supplier in China
Source SEKT square face-milling inserts for production facing and custom requirements, with seating dimensions, wiper geometry and edge preparation matched to the cutter and work material.
What Is a SEKT Insert?
SEKT is a square milling-insert family with nominal 20° clearance, K-class tolerance and a fixing-hole or chip-forming configuration. Positive single-sided SEKT1204 variants are used in compatible face mills, with four indexing positions and geometry selected for the required surface and cutting condition.
Key Specifications
Insert Shape
Square, 90° corners
Clearance Angle
20° nominal
Tolerance Class
K class
Insert Configuration
Positive, single-sided with fixing hole; 4 cutting edges
Common ISO Sizes
1204
Primary Applications
General Face Milling, Rough Face Milling, Semi-Finish Facing
Custom SEKT Insert Options
Configure the key manufacturing details for your insert application, from dimensions and cutting material to edge condition and identification.
Dimensions & Tolerances
Specify insert dimensions and tolerances according to your drawings.
Cutting Material & Grade
Select insert material and grade to suit your machining application.
Top Geometry & Chip Control
Customize top geometry and chip control features for your cutting needs.
Edge Preparation
Specify edge honing, chamfers and other edge preparation options.
Coating & Surface Treatment
Choose coating and surface treatments to meet your cutting needs.
Marking & Packaging
Customize insert markings and packaging to meet your order requirements.
Available SEKT Milling Insert Sizes
CarbideMatch manufactures SEKT inserts in the standard sizes listed below and can review custom dimensions and application-specific configurations. Send your required designation, cutter model, drawing, sample, work material or cutting conditions for technical review and a quotation.
ISO Designation
IC (mm)
S (mm)
D1 (mm)
BS (mm)
SEKT 1204AFTN
12.7
4.76
5.5
2.1
SEKT 1204
12.7
4.76
5.6
2.1
SEKT 1204AFEN
12.7
4.76
5.5
1.7
Don't See the Configuration You Need?
The configurations shown above represent commonly requested options and may not include everything we can supply. Contact us to check another specification or discuss your custom requirements.
SEKT Insert Applications
Select the insert and cutter as a complete system. Review the operation, component geometry, machine rigidity and engagement before choosing the grade, coating and edge preparation.
General Face Milling
Produces flat surfaces with a compatible cutter whose entering angle and seat support fit the insert.
Rough Face Milling
Removes stock with a grade and edge preparation suited to interruption and load.
Semi-Finish Facing
Creates a consistent allowance for the final pass while controlling runout and chip evacuation.
Finish Facing
Uses suitable wiper form, tooth positioning and feed to achieve the specified surface finish.
SEKT Insert FAQ
Does BS specify a corner radius?
No. BS identifies the wiper-edge length in the referenced dimensional system; it must not be substituted for RE in the tool model.
Why can two SEKT1204 forms have different fixing holes?
Hole and countersink geometry can vary by insert design. Compare the complete suffix, screw head and pocket support before purchasing a replacement.
What happens if the cutter's wiper insert projects too far?
It can carry excessive chip load, increase force and damage the edge. Set projection and runout to the cutter manufacturer's instructions.
How should a finish defect repeating once per revolution be investigated?
Check the highest axial tooth, damaged wiper, arbor seating, spindle runout and individual pocket condition before changing cutting data.
Can a square insert produce a 90-degree shoulder?
Only in a cutter designed for that shoulder geometry. Square insert shape does not establish the installed entering angle or wall clearance.
What information helps diagnose built-up edge?
Record work material and hardness, speed, feed per tooth, coolant, coating, edge preparation and chip observations, and supply close-up wear photographs.
About CarbideMatch
CarbideMatch is a cutting-tool manufacturer and multi-brand distributor with years of OEM manufacturing and industry experience. We currently focus on carbide and indexable inserts across a wide range of brands, grades and specifications.
Search by part number, ISO/ANSI code, grade or application to quickly identify suitable inserts and compatible alternatives
- Own Manufacturing Capabilities
- Multi-Brand Product Supply
- Application-Based Grade Matching
How We Work
Search by part number, ISO/ANSI code, grade or application — or send us your requirements and let us help match the right insert.
01
Submit Requirements
Share the part number, drawing, material or cutting conditions.
02
Review Application
We verify specifications, operation and performance goals.
03
Match the Solution
We match the right inserts to your materials, cutting conditions and requirements.
04
Quote & Sample
Confirm pricing, availability and samples when required.
05
Inspect & Deliver
Products are checked, securely packed and shipped on schedule.
06
Ongoing Support
We support trial feedback, repeat orders and optimization.