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Compact Shoulder Milling Inserts

JDMT070208 Carbide Milling Inserts

Compare JDMT070204 and JDMT070208 carbide inserts by dimensions, corner radius and grade options. Match JDMT070208 to compatible ASM07 small-diameter right-angle milling cutter bodies for shoulder, side, slot and ramp milling.

View JDMT Specifications Match ASM07 Cutters Request Pricing

JDMT070204 and JDMT070208 carbide milling inserts

JDMT carbide milling inserts

JDMT dimensions: L, W, T, D and RE

Insert ModelsJDMT070204 and JDMT070208

Core SizeL 6.40 × W 4.3 × T 2.45 mm

Corner RadiusRE 0.4 or 0.8 mm

Relief Direction15° positive shoulder-milling insert

Grade OptionsD530, D570, D580, D7320 and D9920S

Confirmed CutterJDMT070208 → ASM07

Browse by Corner Radius

JDMT070204 and JDMT070208 Models

Both models share the same overall dimensions and hole size. The final two digits identify the corner-radius option, which changes edge strength and the generated internal corner.

JDMT070204

RE 0.40 mm

Smaller corner radius for reduced cutting load and a tighter workpiece corner. Cutter compatibility must be confirmed from the complete body and pocket.

View 070204 specifications

JDMT070208

RE 0.80 mm

Larger corner radius for additional edge support. This is the insert specified for the ASM07 cutter range in your milling cutter data.

View ASM07 compatibility

Insert Identification

What Is a JDMT Milling Insert?

JDMT is a compact positive-relief indexable milling insert used in small-diameter shoulder-milling cutter systems.

The complete model identifies the insert shape, 15° relief direction, tolerance, clamping form, size and corner radius. Similar JDMT0702 models can differ by radius, edge geometry or cutter pocket, so the full designation must be retained.

JJDMT Shape CodeCompact shoulder-milling form

D15° ReliefPositive side-clearance direction

MM ToleranceDimensional tolerance class

TClamping FormHole and chip-form configuration

JDMT070208 is the confirmed ASM07 insert in the supplied cutter range. Do not assume JDMT070204 uses the same pocket without checking the complete cutter body.

JDMT carbide inserts for compact shoulder milling

Dimensions and Grade Options

JDMT070204 and JDMT070208 Specifications

The two products use identical L, W, T and D dimensions. The corner radius changes from 0.40 to 0.80 mm.

L — Overall insert length W — Insert width T — Insert thickness D — Mounting-hole diameter RE — Corner radius Relief — 15° direction

Complete Designation	L (mm)	W (mm)	T (mm)	D (mm)	RE (mm)	Relief	Grade Options	Cutter Direction
JDMT070204	6.40	4.3	2.45	2.15	0.40	15°	D530D570D580D7320D9920S	Confirm the exact cutter pocket
JDMT070208	6.40	4.3	2.45	2.15	0.80	15°	D530D570D580D7320D9920S	ASM07 confirmed

Grade availability is identical for the two listed JDMT models and must be matched to the complete insert designation.

RE 0.4

Smaller Corner Radius

Produces a tighter workpiece corner and generally reduces radial engagement at the insert tip. Confirm suitability for the required shoulder and feed.

RE 0.8

Larger Corner Radius

Provides more material behind the cutting edge and is the confirmed radius used by the ASM07 cutter range.

Carbide Grade Direction

JDMT Grade Options by Material and Cutting Condition

Select only a grade available for the complete JDMT model, then match the grade direction to the material, machine stability, coolant and wear mode.

D530

Steel and cast-iron direction where toughness and interrupted-cut reliability are important.

D570

General steel and stainless-steel direction, including stable and lighter finishing loads.

D580

Steel and cast-iron direction for selected stable machining and wear-resistance requirements.

D7320

General-purpose direction across steel, stainless steel and cast iron.

D9920S

Hardened and difficult-material direction when the complete geometry and conditions are suitable.

ASM07 small-diameter shoulder milling cutter for JDMT070208 inserts

Cutter Compatibility

Match JDMT070208 Inserts to ASM07 Cutters

The ASM07 range uses JDMT070208 in compact small-diameter right-angle milling holders from Ø8 to Ø16 mm. Confirm diameter, shank, flute count, total length and the complete cutter code.

Ø8–9 mm1-flute holders, 8 mm shank, 100 mm total length.

Ø10–11 mm2-flute holders, 10 mm shank, 100 mm total length.

Ø12–13 mm2- or 3-flute holders, 12 mm shank, 120 mm total length.

Ø14–16 mm3- or 4-flute holders with 14 or 16 mm shanks.

ASM07 uses JDMT070208, M1.8 clamping screws and a T6 wrench in the supplied cutter range.

View ASM07 Models Send Your ASM07 Cutter Code

ASM07 Cutter Model	Teeth	Cutter ØD (mm)	Shank Ød (mm)	Total Length (mm)	Blade Length (mm)	Insert
ASM07 08-S8-100	1	8	8	100	20	JDMT070208
ASM07 09-S8-100	1	9	8	100	20	JDMT070208
ASM07 10-S10-100-2T	2	10	10	100	20	JDMT070208
ASM07 11-S10-100-2T	2	11	10	100	20	JDMT070208
ASM07 12-S12-120-2T	2	12	12	120	20	JDMT070208
ASM07 13-S12-120-2T	2	13	12	120	20	JDMT070208
ASM07 12-S12-120-3T	3	12	12	120	20	JDMT070208
ASM07 13-S12-120-3T	3	13	12	120	20	JDMT070208
ASM07 14-S14-120-3T	3	14	14	120	25	JDMT070208
ASM07 15-S14-150-4T	4	15	14	150	25	JDMT070208
ASM07 16-S16-150-4T	4	16	16	150	25	JDMT070208

JDMT insert shoulder milling application

Milling Applications

JDMT070208 Shoulder Milling Applications

Actual cutting depth, ramping angle and slotting capability depend on the complete ASM07 body, flute count, machine rigidity, insert grade and workpiece setup.

Shoulder Milling

For compact steps and side walls using compatible right-angle ASM07 cutter bodies.

Shoulder milling tools

Side Milling

For side-cutting and contour operations after confirming holder clearance and radial engagement.

Slot Milling

For suitable ASM07 bodies when chip evacuation, cutter engagement and slot width are controlled.

Slot milling tools

Ramping and Helical Entry

For cutter models and programs designed for oblique or helical entry into the workpiece.

Selection Checklist

How to Choose a JDMT Insert

Confirm the Cutter BodyRecord the complete ASM07 or other cutter model, pocket and screw.

Select 070204 or 070208Choose the required 0.4 or 0.8 mm corner-radius model.

Check All DimensionsVerify L, W, T, D and RE against the existing insert or drawing.

Confirm Cutter CompatibilityUse JDMT070208 for the listed ASM07 range; verify 070204 separately.

Select an Available GradeChoose D530, D570, D580, D7320 or D9920S according to the operation.

State Material and ApplicationInclude workpiece material, shoulder depth, radial engagement and entry method.

Send Quantity and Tool-Life DataProvide the required quantity, packaging, cutting data and current failure mode.

Request Pricing

Request JDMT Insert Pricing and ASM07 Compatibility Review

Provide the complete insert and cutter details so the correct radius, carbide grade and cutter fit can be checked.

Complete JDMT070204 or JDMT070208 designation ASM07 cutter-body model, diameter, shank and number of teeth Workpiece material, hardness and shoulder-milling operation Current cutting data, depth, radial engagement and coolant direction Required quantity, packaging and current tool-life problem

JDMT070208 Carbide Milling Inserts