Gage Block Stack for 63.5 mm

Fewest-block stack, 88-piece metric set

60 + 3.5 = 63.5 mm

2 blocks. Checked: the block sizes add up to exactly 63.5 mm.

This is the stack for a 63.5 mm gage block height, worked for the 88-piece metric set (and checked against the 112-piece set). For reference, 63.5 mm is exactly 2.5 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
3.5	3.500	60.000
60	63.500	0.000

Other stacks for 63.5 mm (88-piece metric set)

60 + 3 + 0.5 (3 blocks)
60 + 2.5 + 1 (3 blocks)
60 + 2 + 1.5 (3 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 50 + 13.5 = 63.5 mm, 2 blocks, which is the same number of blocks than the 88-piece metric stack.

How to use this stack

Pull the 2 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 63.5 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.

Quick answers

What gage block stack makes 63.5 mm?

With the 88-piece metric set, stack 60 + 3.5. The blocks add up to exactly 63.5 mm.

How many gage blocks do I need for 63.5 mm?

The 88-piece metric set builds 63.5 mm with 2 blocks, the fewest possible from that set.

Can the 112-piece metric set build 63.5 mm?

Yes: 50 + 13.5, 2 blocks.