The Mahr 844K Intramess self-centering bore gage is a long established favorite of Quality professionals.  Featuring a split ball spherical design, ease of use and repeatability are two of its most appealing features.  There are many variations of this gage available with several indicators (see the "Downloads Tab for the product flyer").   Please contact us for pricing and we will help you build your Mahr 844 K Intramess bore gage system!

Features:

• Effective at measuring the ovality and taper of a bore.
• Precision lapped, spring loaded, split cylinder head
• Constant measuring force to eliminate operator "feel"
• Chrome plated for maximum wear resistance
• Large measuring range
• Many accessories available including: extensions, right angle attachments and depth stops

Specifications:

Deviation of linearity
≤ 2 % measuring ranges 0.47-1.55 mm
≤ 1 % measuring ranges 1.5-18.6 mm

Repeatability
1 μm manual measurement
≤ 0.5 μm measurement with Stand 844 Kst
and Floating Holder 844 Ksts

844 K Measuring heads hard chrome plated,
expanding pin made of stainless steel

844 KH Measuring heads carbide tipped on both sides,
carbide expanding pin

844 KS Blind hole measuring heads hard chrome plated,
expanding pin made of stainless steel

Includes holder, measuring probe, expanding pin and wooden case, but not
indicating instrument
** Additionally includes measuring force spring 4470828 and disk 4470821

Indicating Instruments

All indicators that have an 8mm mounting shank may be used.