• Korloy Auto Tools MSB Micro Boring Tool MBR Boring
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Korloy Auto Tools MSB Micro Boring Tool MBR Boring

Korloy Auto Tools MSB Micro Boring Tool MBR Boring

Solid carbide micro small boring tool MBR for boring of small bores on automatic lathes.

Key features

  • Micro small boring bar (MSB) for small-bore machining on automatic lathes
  • High-hardness grade PC30M for long tool life
  • Twin-edge (double-ended) and single-edge versions
  • For fittings, valves, medical and automotive parts
  • Used with SL sleeves

Specifications

Series MBR
Application Boring
Grade PC30M (coated)
MBR0310 PC30M Bore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0310-1 Bore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0315 PC30M Bore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0315-1 Bore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0410 PC30M Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0410-1 Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0415 PC30M Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0415-1 Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0420 PC30M Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 50 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0420-1 Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 50 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0610 Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 45 | Overall length L single-ended (mm): 40 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0610-1 Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 45 | Overall length L single-ended (mm): 40 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0615 PC30M Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 55 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0615-1 Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 55 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0620 PC30M Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 65 | Overall length L single-ended (mm): 50 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0620-1 Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 65 | Overall length L single-ended (mm): 50 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0810 Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0810-1 Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0820 PC30M Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 70 | Overall length L single-ended (mm): 60 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0820-1 Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 70 | Overall length L single-ended (mm): 60 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0830 Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 30 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0830-1 Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 30 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1015 Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 60 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1015-1 Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 60 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1025 PC30M Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 25 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR1025-1 Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 25 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1035 Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 35 | Overall length L double-ended (mm): 100 | Overall length L single-ended (mm): 80 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1035-1 Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 35 | Overall length L double-ended (mm): 100 | Overall length L single-ended (mm): 80 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
Boring BarsKorloy
28 product codes available in this family
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Korloy Auto Tools MSB Micro Boring Tool MBR Boring

Brand Korloy·Boring Bars

Available part numbers (28)

MBR0310 PC30M, MBR0310-1, MBR0315 PC30M, MBR0315-1, MBR0410 PC30M, MBR0410-1, MBR0415 PC30M, MBR0415-1, MBR0420 PC30M, MBR0420-1 + 18 more — see full table ↓

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Product codes & specifications
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Product codeSpec
MBR0310 PC30MBore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0310-1Bore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0315 PC30MBore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0315-1Bore diameter Ød (mm): 3.0 | Min. machining dia. (mm): 3.2 | a (mm): 0.5 | s (mm): 1.4 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0410 PC30MBore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0410-1Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 40 | Overall length L single-ended (mm): 35 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0415 PC30MBore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0415-1Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0420 PC30MBore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 50 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0420-1Bore diameter Ød (mm): 4.0 | Min. machining dia. (mm): 4.2 | a (mm): 0.6 | s (mm): 1.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 50 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0610Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 45 | Overall length L single-ended (mm): 40 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0610-1Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 45 | Overall length L single-ended (mm): 40 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0615 PC30MBore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 55 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0615-1Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 55 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0620 PC30MBore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 65 | Overall length L single-ended (mm): 50 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0620-1Bore diameter Ød (mm): 6.0 | Min. machining dia. (mm): 6.2 | a (mm): 0.75 | s (mm): 2.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 65 | Overall length L single-ended (mm): 50 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0810Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0810-1Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 10 | Overall length L double-ended (mm): 50 | Overall length L single-ended (mm): 45 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0820 PC30MBore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 70 | Overall length L single-ended (mm): 60 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR0820-1Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 20 | Overall length L double-ended (mm): 70 | Overall length L single-ended (mm): 60 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0830Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 30 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR0830-1Bore diameter Ød (mm): 8.0 | Min. machining dia. (mm): 8.2 | a (mm): 0.8 | s (mm): 3.9 | Cutting length ℓ (mm): 30 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1015Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 60 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1015-1Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 15 | Overall length L double-ended (mm): 60 | Overall length L single-ended (mm): 60 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1025 PC30MBore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 25 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Twin edge (double ended) | Grade: PC30M | Stock: Yes
MBR1025-1Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 25 | Overall length L double-ended (mm): 80 | Overall length L single-ended (mm): 70 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1035Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 35 | Overall length L double-ended (mm): 100 | Overall length L single-ended (mm): 80 | Edge: Twin edge (double ended) | Grades: PC30M | Stock: Not marked as stock item
MBR1035-1Bore diameter Ød (mm): 10.0 | Min. machining dia. (mm): 10.2 | a (mm): 1.0 | s (mm): 4.9 | Cutting length ℓ (mm): 35 | Overall length L double-ended (mm): 100 | Overall length L single-ended (mm): 80 | Edge: Single edge (single ended) | Grades: PC30M | Stock: Not marked as stock item

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