Best Inside Micrometers
Style: Standard. Electromagnetic Absolute sensor with improved resistance to environmental conditions such as dirt, oil and water that can cause false readings.
Reviews
Find Best Price at Amazon"This is the gold standard of digital micrometers."
"Great tool very well made, exactly as advertised."
"Not bad for an electronic device."
Mitutoyo Tublar Inside Micrometer, Graduations: .001", Range: 1.5 - 12", Mic head travel: .500".
Reviews
Find Best Price at Amazon"Just what my son asked for."
"I have extreme confidence in this product and look forward to many years of quality use with these inside micrometers."
The Mitutoyo 293-349-30 digital micrometer has a 0 to 1" (0 to 25.4mm) measuring range with 0.00005" (0.001mm) increments for precision and a friction thimble stop with carbide-tipped measuring faces for consistent measurement. The digital micrometer is Ingress Protection certified IP65 for protection from dirt and water and includes a protective case and SR44 silver oxide battery.
Reviews
Find Best Price at Amazon"Some parts of the description, and the photo, show a resolution of 0.00005 on the inch scale. This item is "five stars" based on Mitutoyo engineering and expected performance, although I came dangerously close to marking it "four stars" based on the Amazon errors in the description and incorrect photo--and therefore I have some disappointment in the resolution of the mic. When used as a metric mic, only the digital display can be read The mechanical scale is in the inch range, which I like. Realistically, this is every bit as accurate (0.0001) and repeatable as my old micrometer that it replaces, and far easier to read than my previous (non-electronic/non-digital) model. I'd prefer that they ALSO had an on/off button, because when I'm done with the mic I don't want to feel I need to check it later to assure it's turned off. In other words, Mitutoyo packages the mic with a battery that may become "stale" from sitting on the shelf somewhere before the item is sold and placed into service."
"Works like a charm."
"Excellent for the price."
"Great shipper great item."
Best Inside Measurement
Bore gauges are typically calibrated with a setting ring and come in two types: simple and direct-measuring. Simple bore gauges are used with a caliper to transfer the hole measurement, while the more complex gauges take the measurement directly, and display it through a vernier, dial, or digital display. Bore gauges have a two- or three-point contact, indicating how many points on the gauge head touch the inside of the bore. Pistol-grip bore gauges are used for fast, single-handed operation with repeatable results from one operator to another.
Reviews
Find Best Price at Amazon"There is a red sticker on the front of the box that says "Check instructions for quantity of anvils", but the instructions are very unclear about how many are supposed to be included and where they are stored."
"However, there is not much label indicating it's a Fowler other than the indicator."
"Nice Bore gauge, As noted elsewhere there should be 3 blank spaces for the anvils, the 2 smallest of each type are shipped fitted to the heads, one (the longest) is not there in the inch set = 3 blank spaces."
"Instructions could be clearer."
"You need an additional caliber to set the base measuring point and it will then give you the difference between the base and what you are measuring."
"Does a very good job for what I need it for."
"Good piece and helped my engine build."
"Update to original review below: After returning the instrument described below, I bought Fowler's 52-646-500 which has much better accuracy and appears to be suitable for engine work. Would be nice if Fowler or Amazon were aboveboard and honestly and OPENLY disclosed in the advertising that the accuracy of this gauge is only plus or minus .0009 inches, and repeatability is only guaranteed to be within plus or minus .0004 inches which values essentially make this "measuring" tool useless for any actual precision work on a modern engine where, say, the allowed out of round is .0004!!"
Best Countersink Gauges
Starrett Countersink Gauges are offered in three different angles so that the gauge sets on the angular side of the countersink, as opposed to a chamfer gauge which sets on the top edge of the chamfer.
Find Best Price at AmazonBest Hole Gauges
Range: 5/16" - 6" (8mm to 150mm), 6 pc set includes: 1 gage: 5/16 - 1/2" range x 4.20" overall. 1 gage: 1/2 - 3/4" range x 4.40" overall. 1 gage: 3/4 - 1-1/4" range x 4.40" overall. 1 gage: 1-1/4 - 2-1/8" range x 5.85" overall. 1 gage: 2-1/8 - 3-1/2" range x 5.85" overall. 1 gage: 3-1/2 - 6" range x 5.85" overall. Spring loaded with locking knurled knob. Stainless Steel Construction. Gage expands in a hole to be measured (locks in place and then removed to determine final hole size using a micrometer or calipers).
Reviews
Find Best Price at Amazon"They work as designed."
"its ok ,u get what you paid for."
"Excellent Quality For Price."
"What can you expect for $20 bucks..."
"Cheap price but do work pretty good if you pay attention to what you are doing."
Best Bore Gauges
Bore gauges are typically calibrated with a setting ring and come in two types: simple and direct-measuring. Simple bore gauges are used with a caliper to transfer the hole measurement, while the more complex gauges take the measurement directly, and display it through a vernier, dial, or digital display. Bore gauges have a two- or three-point contact, indicating how many points on the gauge head touch the inside of the bore. Pistol-grip bore gauges are used for fast, single-handed operation with repeatable results from one operator to another.
Reviews
Find Best Price at Amazon"There is a red sticker on the front of the box that says "Check instructions for quantity of anvils", but the instructions are very unclear about how many are supposed to be included and where they are stored."
"However, there is not much label indicating it's a Fowler other than the indicator."
"Nice Bore gauge, As noted elsewhere there should be 3 blank spaces for the anvils, the 2 smallest of each type are shipped fitted to the heads, one (the longest) is not there in the inch set = 3 blank spaces."
"Instructions could be clearer."
"You need an additional caliber to set the base measuring point and it will then give you the difference between the base and what you are measuring."
"Does a very good job for what I need it for."
"Good piece and helped my engine build."
"Update to original review below: After returning the instrument described below, I bought Fowler's 52-646-500 which has much better accuracy and appears to be suitable for engine work. Would be nice if Fowler or Amazon were aboveboard and honestly and OPENLY disclosed in the advertising that the accuracy of this gauge is only plus or minus .0009 inches, and repeatability is only guaranteed to be within plus or minus .0004 inches which values essentially make this "measuring" tool useless for any actual precision work on a modern engine where, say, the allowed out of round is .0004!!"
Best Chamfer Gauges
Hardened and Precision ground 3-Blade steel plunger assures High accuracy and repeatability.
Reviews
Find Best Price at Amazon"Recieved as expected."