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Starrett Depth Micrometers
Measure the depth of holes, slots, shoulders, and projections by changing out the steel extension rods supplied in 1" incremental lengths. The thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.
Base | Extension Rods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Accuracy | Measuring Increments | Wd. | Lg. | Material | No. of | Lg. | Dia. | Overall Ht. | Manufacturer Model No. | Each | |
Ratchet Thimble | ||||||||||||
| 0"-3" | ±0.0001" | 0.001" | 2 1/2" | 5/8" | Steel | 3 | 1", 2", 3" | 1/8" | 3 1/2" | 440Z-3RL | 000000 | 0000000 |
| 0"-3" | ±0.0001" | 0.001" | 3" | 39/64" | Steel | 3 | 1", 2", 3" | 5/32" | 3 1/2" | 445AZ-3RL | 0000000 | 000000 |
| 0"-3" | ±0.0001" | 0.001" | 4" | 39/64" | Steel | 3 | 1", 2", 3" | 5/32" | 3 1/2" | 445BZ-3RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 2 1/2" | 5/8" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 1/8" | 3 1/2" | 440Z-6RL | 000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 3" | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 5/32" | 3 1/2" | 445AZ-6RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 4" | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 5/32" | 3 1/2" | 445BZ-6RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 6" | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 5/32" | 3 1/2" | 445DZ-6RL | 0000000 | 000000 |
| 0"-9" | ±0.0001" | 0.001" | 4" | 39/64" | Steel | 9 | 1", 2", 3", 4", 5", 6", 7", 8", 9" | 5/32" | 3 1/2" | 445BZ-9RL | 0000000 | 000000 |
| 0mm-75mm | ±0.007 mm | 0.01mm | 63.5mm | 39/64" | Steel | 3 | 1", 2", 3" | 3.2mm | 3 1/2" | 440MZ-75RL | 0000000 | 000000 |
| 0mm-150mm | ±0.007 mm | 0.01mm | 63.5mm | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 3.2mm | 3 1/2" | 440MZ-150RL | 0000000 | 000000 |
Starrett Depth Micrometers with Calibration Certificate
These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. Change out the steel extension rods supplied in 1" incremental lengths to measure the depth of holes, slots, shoulders, and projections. The thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.
Base | Extension Rods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Accuracy | Measuring Increments | Wd. | Lg. | Material | No. of | Lg. | Dia. | Overall Ht. | Manufacturer Model No. | Each | |
Ratchet Thimble | ||||||||||||
| 0"-3" | ±0.0001" | 0.001" | 2 1/2" | 5/8" | Steel | 3 | 1", 2", 3" | 1/8" | 3 1/2" | 440Z-3RL | 0000000 | 0000000 |
| 0"-3" | ±0.0001" | 0.001" | 3" | 39/64" | Steel | 3 | 1", 2", 3" | 5/32" | 3 1/2" | 445AZ-3RL | 0000000 | 000000 |
| 0"-3" | ±0.0001" | 0.001" | 4" | 39/64" | Steel | 3 | 1", 2", 3" | 5/32" | 3 1/2" | 445BZ-3RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 2 1/2" | 5/8" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 1/8" | 3 1/2" | 440Z-6RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 3" | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 5/32" | 3 1/2" | 445AZ-6RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 4" | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 5/32" | 3 1/2" | 445BZ-6RL | 0000000 | 000000 |
| 0"-6" | ±0.0001" | 0.001" | 6" | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 5/32" | 3 1/2" | 445DZ-6RL | 0000000 | 000000 |
| 0"-9" | ±0.0001" | 0.001" | 4" | 39/64" | Steel | 9 | 1", 2", 3", 4", 5", 6", 7", 8", 9" | 5/32" | 3 1/2" | 445BZ-9RL | 0000000 | 000000 |
| 0mm-75mm | ±0.007 mm | 0.01mm | 63.5mm | 39/64" | Steel | 3 | 1", 2", 3" | 3.2mm | 3 1/2" | 440MZ-75RL | 0000000 | 000000 |
| 0mm-150mm | ±0.007 mm | 0.01mm | 63.5mm | 39/64" | Steel | 6 | 1", 2", 3", 4", 5", 6" | 3.2mm | 3 1/2" | 440MZ-150RL | 0000000 | 000000 |
Starrett Depth Gauges
Reach deep into small holes and slots for precise depth measurements. This gauge has a rod to measures the depth of recesses where the blade won’t fit. The blade has a hook which grabs the edge of an object for easy alignment. Markings are etched for wear resistance.
Graduation Marks (Numeric Increments) | Measuring Blade | Base | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Angle Measured | Includes | Measuring Range | Front Right | Back Left | Tip Wd. | Wd. | Wd. | Material | Wd. | Lg. | Color | Graduation Color | Overall Ht. | Features | Mfr. Model No. | Each | |
Bottom to Top/Top to Bottom Reading Direction | ||||||||||||||||||
| 6" | 30°, 45°, 60° | 6" Lg. × 5/64" Dia. Steel Rod | 0"-4 1/2" | 64ths (1") | 32nds (1") | 0.47" | 0.19" | 3/16" | Steel | 2 5/8" | 1 9/16" | Silver | Black | 6" | Protractor | 236HB | 000000 | 000000 |