Interactive Chip-Breaker Reference

Machining knowledge, made practical

Cross-Reference Tool

Interactive Chip-Breaker Reference

Cross-reference FM Carbide's turning chip-breaker codes against the equivalent geometry from 13 major brands — organized by material and grouped by negative or positive insert style.

Material color key

Rows are color-coded by workpiece material, following the standard machining color convention.

Steel
Stainless Steel
Cast Iron
Aluminum
NEGATIVE INSERTS
Material FM Sandvik Iscar Kennametal Seco Walter Mitsubishi YG Kyocera Tungaloy Sumitomo Taegutec Korloy Duracarb
STEEL BF PF F3P NF FF FN F1 MF2 FP5 FH LP UF GP PP TF FL SP FG FA VF HU 41
BL PP NF FP5 FY SY UL CQ VF TSF LU FC FT HC 43
BM TF MN M3 MP3 MP UM HS TM GU UX MC PC VM GM 46
BG PM GN M3P MN M3 MR3 MP5 MP,MA UG PS TM UG MT PC GR HR 45
BC PR NR MP RP MR4 RP5 Standard UC Standard TH UZ MG B25 53
BR PR NR R3P UR RN
MG-
MR3
MR6
RP7 RP MH
RK
UR PT PH THS ME MU RT GR
STAINLESS
STEEL
BMM MM M3M MG-MP MR3 NM4 MM MM MS SM GU EM ET GS 42
CAST
IRON
BC PR NR MP RP MR4 MK5 Standard UC Standard All Round UZ MG- B25 53
BR PR NR R3P UN RN
MG-
MR3
MR6
RK5
RK7
RP MH
RK
UR PT PH CH ME MU RT GR
..MA RP MR7 ..MA MG- ..MA C CH GZ ..MA 53
POSITIVE INSERTS
Material FM Sandvik Iscar Kennametal Seco Walter Mitsubishi YG Kyocera Tungaloy Sumitomo Taegutec Korloy Duracarb
STEEL BF PF PF LF
UF
MF2 PF2
FP4
FM LM
LP
UF GQ PP 01
PSF
FP FG HFP 41
BG PM MF MF3 MP4
FP6
MP
Standard
MM MV
UG HQ PS PM MU MT C25 51
STAINLESS
STEEL
BF PF PF LF MF2 MM4
PS5
FM LM
LP
UF GQ PP PM FP FG HFP 41
CAST
IRON
BG PM UF MF3 MK4
RK4
MP
Standard
MM MV
UG HQ CM MU MT C25 51
ALUMINUM BAL AS MF AL PF2
PM2
AZ AL CF CK AL AG FL AK AU

What's new: 3D chip-breaker geometry

Most codes above are traditional 2D chip-breakers. The newest development in the industry is 3D chip-breaker geometry — a sculpted, three-dimensional chip-forming surface (rather than a simple pressed groove) for better control at the extremes: hardened steel, non-ferrous metals, and grooving. So far this is a Tungaloy-specific innovation with no direct FM or competitor cross-reference code yet — listed here as a trend worth watching.

NewSep 2024

TungThread — AH8015

Threading

3D chip-breaker threading inserts in the AH8015 grade, covering ISO metric, UN, and NPT threads with improved chip control and tool life.

Read the announcement →
NewDec 2024

DX160 — 3D Chip-Breaker

Non-Ferrous Turning

19 new ISO inserts for non-ferrous metal turning in the DX160 grade, equipped with a 3D breaker for enhanced chip control and longer tool life.

Read the announcement →
NewApr 2025

TungCut — CBN Full-Radius

Hardened Steel

3D chip-breaker CBN full-radius inserts in the wear-resistant BXA10 grade, built for profiling hardened steel.

Read the announcement →
NewJun 2025

TungCut — STX PCD

Non-Ferrous Grooving

PCD-grade STX inserts (DX160) with a 3D chip-breaker for grooving non-ferrous metals, aimed at better chip control and surface finish.

Read the announcement →

Need help matching a competitor's chip-breaker to an FM Carbide equivalent? Our team can confirm the closest match for your application.

Reference: chip-breaker cross-reference is approximate — always confirm against the manufacturer's current catalog before ordering. Material color coding follows standard machining convention (steel/stainless/cast iron/aluminum) and is not modified from the original reference.

Ready to cut

Once the geometry is settled, the grade and the holder decide how long it lasts. Browse the turning line built for tight tolerances under aggressive feeds.

FM Carbide Turning Inserts → Tool Holders Boring Bars

Not sure which grade matches your material? Use the Grade Look-Up.