BEYOND MCWNR/L Steel Boring Bars 20-40 mm – 50° Lead, CNMG 12, Left & Right

BEYOND MCWNR/L Internal Boring Bar Series – Complete Specification List

Brand: BEYOND
Series: MCWNR/L INTERNAL – Multi-Lock lever-clamp, CNMG 12 inserts, 50° lead angle [^139^][^131^]

Key Search Tags

steel shank boring bar, MCWNR boring bar, MCWNL boring bar, CNMG 12 insert, internal boring tool, 50 degree approach angle, 0 degree relief angle, left hand boring bar, right hand boring bar, CNC lathe boring, heavy-duty boring bar, large diameter boring bar, BEYOND boring tools, multi-lock clamp

Why Choose BEYOND MCWNR/L?

• Popular size range: 20 mm – 40 mm shank diameter
• Rigid steel shank (S) for deep-hole and heavy-duty cuts
• 50° approach angle (W) + 0° relief (N) = maximum edge strength [^139^]
• Multi-Lock lever clamp (C) for quick insert changes [^131^]
• Left-hand (L) & right-hand (R) versions in stock
• Designed for CNMG 12 inserts (also accepts CNMA, CNMP)

Technical Data – All Models

Insert & Spare Parts

• Insert: CNMG 1204 (0° relief, 80° diamond)
• Multi-Lock lever included – no extra hardware needed
• Wrench: T15 Torx key supplied free with every bar

Application Ideas

• Heavy-duty boring of forged steel flanges
• Deep bores in wind-tower hubs
• Large gearbox housings – cast iron & steel
• Oil-field connector bores – 4140, 4340, F22

Shipping & Stock

Ships from California, USA & Dortmund, Germany. 98 % of models in stock – order before 3 pm local time for same-day dispatch.

Long-Tail Keywords

20 mm steel boring bar, CNMG 12 boring bar, MCWNR right hand boring bar, MCWNL left hand boring bar, 50 degree approach angle, 0 degree relief angle, heavy duty internal boring tool, large diameter boring bar, CNC lathe deep boring, BEYOND precision boring tools, steel shank boring bar supplier, multi-lock clamp boring bar