Made of close grained semi-steel. Stress relieved against distortion by annealing after seasoning. Perfect wherever square surfaces are required for checking or layout work.

Ground
Order No.	Size
438-0601	3-3/4"x4"x5"
438-0602	4"x4"x6"
438-0603	5"x5"x6"
438-0604	4"x5"x8"
438-0605	5"x8"x12"
438-0606	5-1/2"x7"x10"
438-0607	5-1/2"x8"x10"
438-0608	6"x6"x8"
438-0609	8"x10"x12"
438-0610	8"x9"x16"
438-0611	10"x12"x16"
438-0612	12"x12"x24"
Machined
Order No.	Size
438-0701	3-3/4"x4"x5"
438-0702	4"x4"x6"
438-0703	5"x5"x6"
438-0704	4"x5"x8"
438-0705	5"x8"x12"
438-0706	5-1/2"x7"x10"
438-0707	5-1/2"x8"x10"
438-0708	6"x6"x8"
438-0709	8"x10"x12"
438-0710	8"x9"x16"
438-0711	10"x12"x16"
438-0712	12"x12"x24"