88-Piece Metric Gage Block Set: Block Sizes and Stack Examples

Gage block stacks › 88-piece metric set

The 88-piece metric set is the common 1 mm-base metric set. It uses the half-micron, 0.001, 0.01 and 0.5 mm series plus ten large blocks (10 to 100 mm) to build sizes in 0.001 mm steps.

The block list below is the composition the free gage block calculator uses for this set. Sets from different makers can differ slightly, so check the sizes marked on the blocks in your own box.

All 88 blocks in the 88-piece metric set

Series	Blocks	Sizes (mm)
Half-micron block	1	1.0005
0.001 mm series	9	1.001, 1.002, 1.003, 1.004, 1.005, 1.006, 1.007, 1.008, 1.009
0.01 mm series	49	1.01, 1.02, 1.03, 1.04, 1.05, 1.06, 1.07, 1.08, 1.09, 1.1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, 1.2, 1.21, 1.22, 1.23, 1.24, 1.25, 1.26, 1.27, 1.28, 1.29, 1.3, 1.31, 1.32, 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, 1.39, 1.4, 1.41, 1.42, 1.43, 1.44, 1.45, 1.46, 1.47, 1.48, 1.49
0.5 mm series	19	0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5
10 mm series	10	10, 20, 30, 40, 50, 60, 70, 80, 90, 100

Total: 88 blocks, smallest 0.5 mm, largest 100 mm. All blocks laid end to end would measure 716.2955 mm.

What sizes can it build?

Each block can be used once in a stack. Working it out for every size, every size in steps of 0.001 mm from 2.000 to 713.295 mm can be built, as long as the stack uses each block only once.

Worked examples

Fewest-block stacks from the same solver the calculator uses; each one adds up to the target exactly.

Target	Stack	Blocks
7.777 mm	5.5 + 1.27 + 1.007	3
33.333 mm	30 + 1.33 + 1.003 + 1	4
58.125 mm	50 + 6 + 1.12 + 1.005	4
250.5 mm	100 + 90 + 60 + 0.5	4
19.995 mm	10 + 7.5 + 1.49 + 1.005	4

If a block is missing or worn

Untick the block in the free gage block calculator and it finds the next-best stack from what is left. If your set includes wear blocks, they can be added to the ends of a stack to protect the working blocks; see gage block care and wear blocks.

Build a stack from your 88-piece metric set in the free gage block calculator →

Prefer it filled in? Open the calculator with the set selected. Free, no login, works on a phone.

Quick answers

How many blocks are in a 88-piece metric gage block set?

The 88-piece metric set has 88 blocks, from 0.5 mm to 100 mm.

What sizes can the 88-piece metric set build?

Using each block once, it builds every size in steps of 0.001 mm from 2.000 to 713.295 mm.

What is the quickest way to find a stack from the 88-piece metric set?

Clear the last digit first, then work left, or enter the size in the free gage block calculator at gageblockcalc.com and it lists the fewest-block stacks.

Gear for this job

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