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HomeProductMQR Carbide internal profiling boring tool
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MQR Carbide internal profiling boring tool

Custom MQR Carbide Internal Profiling Boring Tool is designed for precision internal contouring, pocketing, and form machining in small to medium bores. Made from premium micro-grain carbide, it delivers high rigidity, stable cutting performance, and extended tool life in continuous CNC operations. Optimized MQR geometry ensures smooth profile transitions, accurate radii, and controlled chip evacuation when machining complex internal shapes. Its low-vibration design maintains excellent dimensional accuracy and surface finish on materials including stainless steel, titanium, copper alloys, and aluminum. Full OEM/ODM customization is available for profile shape, cutting radius, shank size, length, and coatings such as TiAlN, AlTiN, and DLC.
Product Details Parameter Coating
Product Type Min. Dia(mm) ΦA ΦD r L1 L2 F S
MQR1.5R0.05L5 1.5 4 0.05 40 5 1.4 0.3
MQR2R0.05L6 2.1 4 0.05 40 6 1.85 0.4
MQR2.5R0.05L8 2.6 4 0.05 40 8 2.35 0.45
MQR3R0.1L10 3.1 4 0.1 40 10 2.8 0.6
MQR3R0.1L15 3.1 4 0.1 46 15 2.8 0.6
MQR4R0.1L12 4.1 4 0.1 46 12 3.8 0.8
MQR4R0.1L20 4.1 4 0.1 50 20 3.8 0.8
MQR5R0.15L15 5.1 5 0.15 50 15 4.8 1
MQR5R0.15L25 5.1 5 0.15 60 25 4.8 1
MQR6R0.15L20 6.1 6 0.15 50 20 5.8 1.2
MQR6R0.15L30 6.1 6 0.15 60 30 5.8 1.2
MQR8R0.2L22 8.1 8 0.2 60 22 7.8 1.5
MQR8R0.2L30 8.1 8 0.2 65 30 7.8 1.5
Coated Item Color Application Performance parameter
AT12 Gold
Universal use for ≤HRC45 material;
Stainless(austenitic&Martensite,303,304,316F...);
Steel(Bearing steel,quenched steel,Cr-Mo stee, Mn steel...);
Koveralloy; Superalloy;Copper; Iron castingPig iron;Nickel alloy,PMMA...
Nano Hardness :HV3500
Friction Coefficient: 0.3
Max.Temp:900°
JS25 Bronze
Universal use for ≤HRC60 material;
Stainless(austenitic&Martensite,316L 303,304,321,316F,High Nickel Stainless...);
Steel(Bearing steel,quenched steel,Cr-Mo stee,Mn steel...);
Koveralloy; Superalloy;Copper; Iron castingPig iron;Nickel alloy..
Nano Hardness :HV4500,
Friction Coefficient: 0.4
Max.Temp:1100°
AL25 Blue Grey
Special use for mild material ;
Especial for Pure iron , special for mild steel & mild stainless,like 304.
Nano Hardness :HV3500,
Friction Coefficient: 0.25
Max.Temp:800°
AD12 Black
Special use for viscous Material:;
Aluminium,PMMA,Polyethylene.CFRP.
Nano Hardness :HV2200,
Friction Coefficient: 0.2
Max.Temp:400°
TZ25 Champagne Gold
Carbon Steel,alloy steel,Bearing steel,
quenched steel,Cr-Mo stee,Mn steel...;
Nano Hardness :HV3500,
Friction Coefficient: 0.6
Max.Temp:900°
LC25 Rainbow
Special use for viscous Material:;
Aluminium,PMMA,Polyethylene.CFRP.
Nano Hardness :HV5000
Friction Coefficient: 0.05
Max.Temp:450°