Micro-Ball Sets

Chrome alloy steel balls, plus/minus .0001″ diameter, .000.025″ sphericity.

Micro-Ball Usage Examples

Checking micrometers at exact spot for wear as shown at “A” as Micro Balls are ground and lapped to a sphericity of .000,025″.

Checking wall thickness from inside curve to flat on outside end.

Checking depth of valve seats, ways, slots, etc.

In turning and grinding, where shoulder locations with respect to each other or to a common end are held close (.001”) it is imperative that depth of center drill be maintained. Select a Micro Ball that is tangent to a center and mike overall as “A” or indicate distance as “B.”

For boring of collets, select a set of Micro Balls the width of slots on collet. Coat Micro Balls with grease or vaseline before inserting. Close collet and bore.

Micro-Balls

Material: Chrome alloy steel balls

Standard Tolerance: plus/minus .0001” diameter, .000.025” sphericity.

Metric Tolerance: Within 2 microns for size, 1 micron for sphericity.

STANDARD MODEL 900
1/16” to 1/2” in 1/32” steps.
3 of each size in pop-out case.
$89.60

STANDARD MODEL 901
17/32” to 1” in 1/32” steps.
3 of each size in plastic case.
$179.20

METRIC SET MB60
Three balls of each mm size from 1mm thru 20mm included. (Total of 60 Metric Balls.)
Clear lid for Gage-Set case protects from dust and rust. Labeling allows immediate identification of sizes in every slot
$499.20

Individual Micro-Balls

Inch	Metric	QTY 1-9	10+	Bulk 50+
1/16”- 1/2” in 1/32”	1mm-12mm in mm steps	$9.80 ea	$6.80 ea	$6.00 ea
17/32” – 1” in1/32”	13mm-20mm in mm steps	$14.60 ea	$11.80 ea	$10.60 ea