Marameter 844K Intramess Mahr Federal Self Centering Bore Gages

A Gaging.com favorite! The Mahr Federal 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 Federal 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

*Stand Not Included

Types

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

Mahr 844 Kits - Indicator Not Included

Catalog Number	Measuring Range mm	Measuring Range Inch	Number of Probes	Order Number
844 K	.47 - .97 mm	.018-.038“	6	4470000
(Chrome)	.95 - 1.55 mm	.037 - .060“	5	4470001
	1.5 - 4.2 mm	.060 - .160“	10	4470002
	3.7 - 7.3 mm	.145 - .29“	7	4470003**
	6.7 - 10.3 mm	.26 - .40“	7	4470004**
	9.4 - 18.6 mm	.37 - .73“	9	4470005**
844 KH	1.5 - 4.2mm	.060 - .160“	10	4471002
(Carbide)	3.7 - 7.3 mm	.145 - .29“	7	4471003**
	6.7 - 10.3 mm	.26 - .40“	7	4471004**
	9.4 - 18.6 mm	.37 - .73“	9	4471005**
844 KS	1.5 - 4.2 mm	.060 - .160"	10	4482163
(Chrome/Blind)	3.7 - 7.3 mm	.145 - .29"	7	4482164**
	6.7 - 10.3 mm	.26 - .40"	7	4482165**
	9.4 - 18.6 mm	.37 - .73"	9	4482166**

Indicating Instruments - 8mm shank	mm range	Inch range	Order Number mm	Order Number Inch
Millimess 1004/1004Z	5 μm	.0001“	4333000	4333900
Millimess 1003/1003Z	1 μm	.00005“	4334000	4334900
Millimess 1003 XL	2 μm		4334001
Millimess 1002/1002Z	0.5 μm	.00002“	4335000	4335900
Extramess 2000	0.2 μm	.00001“

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