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Manufactured from high quality spring steel, Straight & Knife Edges are fully ground and hand scraped for a perfectly flat surface. Hand scraping removes all the high points left from grinding making these an extremely accurate tool
The thickness and design permit these to retain shape & accuracy yet convenient to carry around
Used for drawing & scribing straight lines, checking surfaces for straightness, setting up machines such as planers etc. these are available in two types:
Straight Edges - These have flat edges on both sides
Knife Edges - These are flat on one side and have a bevel on the other that provides an excellent visual line contact with the work piece
| Cat. Nr. | Ordering Nr. | Cat. Nr. | Ordering Nr. | Length | width | Thickness | ||||||||||||
| Straight Edges | Knife Edges | inch | mm | inch | mm | inch | mm | |||||||||||
 SE/12 |
02500 | KE/12 | 02550 | 12 | 300 | 1-13/32 | 36.0 | 5/16 | 8 | |||||||||
 SE/18 |
02501 | KE/18 | 02551 | 18 | 450 | 1-13/32 | 36.0 | 5/16 | 8 | |||||||||
| SE/24 |
02502 | KE/24 | 02552 | 24 | 600 | 1-13/32 | 36.0 | 5/16 | 8 | |||||||||
| SE/36 |
02503 | KE/36 | 02553 | 36 | 900 | 2-13/32 | 61.0 | 3/8 | 10 | |||||||||
| SE/48 |
02504 | KE/48 | 02554 | 48 | 1200 | 2-13/32 | 61.0 | 3/8 | 10 | |||||||||
| SE/60 |
02505 | KE/60 | 02555 | 60 | 1500 | 3-5/32 | 80.0 | 3/8 | 10 | |||||||||
| SE/72 |
02506 | KE/72 | 02556 | 72 | 1800 | 3-5/32 | 80.0 | 3/8 | 10 | |||||||||
| SE/96 |
02507 | KE/96 | 02557 | 96 | 2400 | 3-5/32 | 80.0 | 19/32 | 15 | |||||||||
| SE/120 |
02508 | KE/120 | 02558 | 120 | 3000 | 3-1/4 | 83.0 | 19/32 | 15 | |||||||||
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| Cat.Nr. | Flatness Of Edges | Parallelism Of Faces | |||||||||||
| Straight Edges | Knife Edges | Inch | Microns | Inch | Microns | ||||||||
| SE/12 | KE/12 | 0.00047 | 12 | 0.00094 | 24 | ||||||||
| SE/18 | KE/18 | 0.00047 | 12 | 0.00094 | 24 | ||||||||
| SE/24 | KE/24 | 0.00067 | 17 | 0.0013 | 33 | ||||||||
| SE/36 | KE/36 | 0.00083 | 21 | 0.0016 | 40 | ||||||||
| SE/48 | KE/48 | 0.0011 | 28 | 0.002 | 50 | ||||||||
| SE/60 | KE/60 | 0.0011 | 28 | 0.002 | 50 | ||||||||
| SE/72 | KE/72 | 0.0015 | 38 | 0.0029 | 74 | ||||||||
| SE/96 | KE/96 | 0.0018 | 45 | 0.0036 | 91 | ||||||||
| SE/120 | KE/120 | 0.0021 | 54 | 0.0043 | 110 | ||||||||
Straight Edge being used to check flatness