DCMT Inserts Manufacturer & Supplier in China
Source standard and custom DCMT positive turning inserts for internal machining, profiling, shoulder access, and finishing.
What Is a DCMT Insert?
A DCMT insert is an ISO 55° diamond, 7°-clearance, M-tolerance, positive single-sided turning insert with a fixing hole and chipbreaking geometry. The 55° point improves access for profiles and shoulders, while the positive flank helps reduce cutting force in internal and finishing operations.
Key Specifications
Insert Shape
55° diamond
Clearance Angle
7°
Tolerance Class
M class
Insert Configuration
Positive, single-sided with fixing hole; 2 principal corners
Common ISO Sizes
DCMT 0702, 11T3
Primary Applications
Internal turning, profiling, finishing, shoulder work
Custom DCMT 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 DCMT Insert Sizes
CarbideMatch offers DCMT inserts in the standard sizes listed below, with custom dimensions and application-specific configurations available upon request. Send us your required designation, drawing, dimensions, sample, workpiece material, or cutting conditions for technical review and quotation.
ISO Designation
IC (mm)
S (mm)
RE (mm)
D1 (mm)
DCMT 070202
6.35
2.38
0.2
2.8
DCMT 070204
6.35
2.38
0.4
2.8
DCMT 070208
6.35
2.38
0.8
2.8
DCMT 11T302
9.525
3.97
0.2
4.4
DCMT 11T304
9.525
3.97
0.4
4.4
DCMT 11T308
9.525
3.97
0.8
4.4
DCMT 11T312
9.525
3.97
1.2
4.4
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.
DCMT Insert Applications
DCMT inserts are selected where their verified shape, clearance, and holder access match the cutting path and setup.
Internal Profiling
Bore contours where the 55° point and bar geometry provide access.
External Profiling
Changing diameters and contours under light-to-medium cutting loads.
Shoulder Turning
Work near shoulders with holder approach and trailing-edge clearance checked.
Finishing
Fine stock removal using a radius and edge suited to the finish requirement.
Chamfering
Chamfers and edge transitions within the tool's directional limits.
DCMT Insert FAQ
How does DCMT differ from DNMG in holder compatibility?
DCMT has 7° positive clearance and is single-sided, while DNMG is 0° negative and double-sided; their seats and holders are not interchangeable by shape alone.
What limits DCMT use in heavy roughing?
Its positive flank and 55° point provide access and lower force but less corner support than broader negative forms, so load and interruption must be controlled.
Which radius should be sampled first for a profile?
Choose from the drawing's minimum internal features, finish target, feed, stock, rigidity, and desired edge strength rather than using one default.
What holder details prevent a wrong DCMT match?
Provide the full holder designation, hand, bar diameter, screw, seat or shim details, and clear photos of the pocket.
How should dimensional consistency be specified?
Identify critical dimensions, tolerance limits, datum method, sampling plan, inspection equipment, and whether capability data are required.
Can DCMT chipbreakers be tailored to a narrow depth range?
A geometry can be reviewed around the material, feed, depth, coolant, and chip target, subject to tooling feasibility and order volume.
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.