Groove Bottom Probe 54-420-328-0 $985.28 Quantity discounts available QuantityPrice SKU: 544203280 This item is IN STOCKCurrent Stock: 2 Quantity -+ Add to Cart Details Groove Bottom ProbeFor measuring the bottoms of "O" ring grooves, recesses and holes to a depth of 6.0mm. Also used for short lands and shoulders. 90°... Details Back DetailsGroove Bottom ProbeFor measuring the bottoms of "O" ring grooves, recesses and holes to a depth of 6.0mm. Also used for short lands and shoulders. 90° conical diamond stylus, 0.0004"/10µm radius.