← AskMachinist · Guides · Calculator
Gage Block Stack for 99.995 mm
Gage block stacks › 99.995 mm
Fewest-block stack, 88-piece metric set
90 + 7.5 + 1.49 + 1.005 = 99.995 mm
4 blocks. Checked: the block sizes add up to exactly 99.995 mm.
This is the stack for a 99.995 mm gage block height, worked for the 88-piece metric set (and checked against the 112-piece set). For reference, 99.995 mm is about 3.93681 in.
Step by step
Add the blocks from the finest increment to the thickest. After each block the "left to build" column shows what the remaining blocks must make up; it reaches 0 on the last block.
| Block added | Stack height | Left to build |
|---|---|---|
| 1.005 | 1.005 | 98.990 |
| 1.49 | 2.495 | 97.500 |
| 7.5 | 9.995 | 90.000 |
| 90 | 99.995 | 0.000 |
Other stacks for 99.995 mm (88-piece metric set)
- 90 + 7 + 1.49 + 1.005 + 0.5 (5 blocks)
- 90 + 6.5 + 1.49 + 1.005 + 1 (5 blocks)
- 90 + 6.5 + 1.49 + 1.004 + 1.001 (5 blocks)
More blocks means more wrung joints, so the shortest stack above is the one to prefer. These alternates help if a block in your set is missing or worn.
The same size in a 112-piece metric set
With the 112-piece metric set the fewest-block stack is 75 + 22.5 + 1.49 + 1.005 = 99.995 mm, 4 blocks, which is the same number of blocks than the 88-piece metric stack.
How to use this stack
- Pull the 4 blocks listed from your 88-piece metric set and check the sizes marked on each one.
- Wring the thickest blocks together first and add the thinner ones last. See how to wring gage blocks.
- Let the stack and the part reach the same temperature before measuring (temperature correction).
Check 99.995 mm in the free gage block calculator →
Prefer it filled in? Open the calculator with this size and set selected. Free, no login, works on a phone.
Related
- Gage block stack for 150.123 mm
- Gage block stack for 12.345 mm
- 88-piece metric set: all block sizes
- 112-piece metric set: all block sizes
- Inch-to-millimetre stack chart
- All gage block stack pages
- Sine bar calculator (stack height for any angle)
- Gage block temperature correction
- How to wring gage blocks
- Gage block grades explained
Quick answers
What gage block stack makes 99.995 mm?
With the 88-piece metric set, stack 90 + 7.5 + 1.49 + 1.005. The blocks add up to exactly 99.995 mm.
How many gage blocks do I need for 99.995 mm?
The 88-piece metric set builds 99.995 mm with 4 blocks, the fewest possible from that set.
Can the 112-piece metric set build 99.995 mm?
Yes: 75 + 22.5 + 1.49 + 1.005, 4 blocks.