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Measuring the diameter, roundness and conical form of a bore as well as the distances of parallel plane surfaces
Product type: 844N
Measuring range: 250 – 400mm/10 – 16”
Design: Standard, moveable anvil carbide-tipped
Probe path: 2.6mm
Measuring depth: 366mm
Error limit Ge: 3µm
Repeatability fw: 1.5µm
Package contains: measuring holder, measuring head, anvil spindle, wooden case, excludes indicator
Accessories:
Millimess 0.5 µm, ± 25 µm, type 1002
Millimess 1 µm, ± 50 µm, type 1003
Millimess 5 µm, ± 130 µm, type 1004
Digital indicator, 0.0005 mm, 12.5 mm, type 1087 BR
Digital indicator, 0.0005 mm, 12.5 mm, type 1087 BRi
Holder, measuring span 0 – 70 mm, type 420 h
Holder, measuring span 0 – 120 mm, type 420 h
Holder, measuring span 100 – 220 mm, type 420 h
Holder, measuring span 100 – 420 mm , type420 h
Holder, measuring span 400 – 820 mm, type 420 h
Adjustment bridge (70 x 12 mm), for measuring range 18 – 250 mm (for 844 N), type 844 Neb
Adjustment bridge (165 x 17 mm), for measuring range 18 – 400 mm (for 844 N), type 844 Neb
Adjustment bridge (320 x 20 mm), for measuring range 18 – 800 mm (for 844 N), type 844 Neb
Short holder (18 – 50 mm), type 844 Ngk
Short holder (35 – 100 mm), type 844 Ngk
Short holder (100 – 250 mm), type 844 Ngk
Short holder (250 – 800 mm), type 844 Ngk
Measuring depth extension (250 mm) for measuring range 35 – 100 mm, type 844 Nv
Measuring depth extension (250 mm) for measuring range 100 – 250 mm, type 844 Nv
Measuring depth extension (500 mm) for measuring range 100 – 250 mm, type 844 Nv
Measuring depth extension (250 mm) for measuring range 250 – 800 mm, type 844 Nv
Measuring depth extension (500 mm) for measuring range 250 – 800 mm, type 844 Nv
Measuring depth extension (250 mm) for measuring range 18 – 50 mm, type 844 Nv
Right angle attachment, bore depth 45mm, for measuring range 18 – 50 mm, type 844 Nw
Right angle attachment, bore depth 55mm, for measuring range 35 – 100 mm , type844 Nw
Right angle attachment, bore depth 70mm, for measuring range 100 – 250 mm , type844 Nw
Base for mounting holder 420 h up to 420 mm, type 844 ef
Measuring jaw (60 x 9.5 x 9 mm), for measuring range 18 – 800 mm (for 844 N), type 844 em
FEATURES
• Measuring head consists of a carbide tipped moving anvil and an interchangeable stationary anvil with a hardened steel ball
• Transmission lever system transfers movement of movable anvil to indicating instrument
• The broad centering bridge ensures automatic centering in the bore
• Resistant to temperature because the shank and transfer rod are made of heat resistant Invar steel
• Highly resistant to wear and tear because of carbide tipped moving anvil
• Constant measuring force due to built-in spring, eliminating user influence
• Universally applicable and extremely versatile - Each instrument spans a broad measuring range - Quick and easy to adjust to any size (within its range)
• Extensive modular system is composed of measuring head, holder, extensions, Right angle attachments and depth stops
• Invar steel has a particularly low expansion coefficient - instrument totally insensitive to any kind of heat (including user body heat and increased ambient temperature)
