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Find Calibrations on Drafting Scales

Download a complete calibration chart for all our drafting scales here.

Also check out our resources page for additional information on our products.

Find which product #s have the specific calibrations you are seeking.  See charts below. 

Also, find calibrations on a specific product in the product page under the "Sales Tools" button; click on PDF art template.

ARCHITECT CALIBRATIONS:

Calibration  Product Code #s Units of Measure
1/32  3015, 3035, 3055, 3135, 3136, 3145, 3660, 3661, 3699 INCHES
1/16  3015, 3035, 3055, 3135, 3136, 3145, 3146,  3660, 3661, 3699, 7506, 7512 INCHES
3/32  3020, 3030, 3040, 3050, 3051, 3054, 3056, 3100, 3102, 3104, 3145, 3146,  3699 INCHES
3/16  3020, 3030, 3040, 3050, 3051, 3054, 3056, 3100, 3102, 3104, 3145, 3146,  3699 INCHES
1/8  3010, 3011, 3015, 3017, 3020, 3030, 3035, 3040, 3050, 3051, 3054,    3055, 3056, 3100, 3102, 3104, 3130, 3131, 3135, 3136, 3140, 3141, 3145, 3146, 3610, 3611, 3617, 3630, 3645, 3650, 3660, 3661, 3699, 7506, 7512 INCHES
1/4  3010, 3011, 3015, 3017, 3020, 3030, 3035, 3040, 3050, 3051, 3054,  3055, 3056, 3100, 3102, 3104, 3130, 3131, 3135, 3136, 3140, 3141, 3145,   3146,  3610, 3611, 3617, 3630, 3645, 3650, 3660, 3661, 3699, 7506, 7512 INCHES
1/2  3010, 3011, 3017, 3020, 3030, 3035, 3040, 3050, 3051, 3054, 3055,  3056, 3130, 3131, 3140, 3141, 3145, 3146,  3699, 7506, 7512 INCHES
3/8  3010, 3011, 3017, 3020, 3030, 3040, 3050, 3051, 3054, 3056, 3130,  3131, 3140, 3141, 3145, 3146, 3645, 3699 INCHES
3/4  3010, 3011, 3017, 3020, 3030, 3040, 3050, 3051, 3054, 3056, 3130,  3131, 3140, 3141, 3145, 3146, 3645, 3699 INCHES
1  3010, 3011, 3017, 3020, 3030, 3040, 3050, 3051, 3054, 3056, 3130, 3131, 3140, 3141, 3145, 3146,  699 INCHES
1.5  3010, 3011, 3017, 3020, 3030, 3040, 3130, 3131, 3140, 3141, 3145, 3146,  3645, 3699 INCHES
3  3010, 3011, 3017, 3020, 3030, 3040, 3130, 3131, 3140, 3141, 3145, 3146, 3645, 3699 INCHES

16 scale  (inches divided into 16ths)

  3010, 3011, 3015, 3017, 3020, 3030, 3035, 3040, 3050, 3051, 3054, 3055, 3056, 3145, 3146, 3610, 3611, 3617, 3630, 3645, 3650 INCHES
32 scale (inches divided into 32nds)  7506, 7512 INCHES
1:1  7506, 7512 INCHES
2:1  7506, 7512 INCHES

ENGINEER CALIBRATIONS:

Calibration: Parts per inch  Product Code #s Units of Measure
10 3210, 3211, 3217, 3220, 3230, 3240, 3250, 3251, 3254, 3256, 3330, 3331, 3340, 3341, 3345, 3630, 3650, 3699, 7507, 7513 INCHES
20 3210, 3211, 3217, 3220, 3230, 3240, 3250, 3251, 3254, 3256, 3330, 3331, 3340, 3341, 3345, 3699, 7507, 7513 INCHES
25 3660 INCHES
30 3210, 3211, 3217, 3220, 3230, 3240, 3250, 3251, 3254, 3256, 3330, 3331, 3340, 3341, 3345, 3699 INCHES
40 3210, 3211, 3217, 3220, 3230, 3240, 3250, 3251, 3254, 3256, 3345, 3699, 7507, 7513 INCHES
50 3210, 3211, 3217, 3220, 3230, 3240, 3250, 3251, 3254, 3256, 3330, 3331, 3340, 3341, 3345, 3630, 3650, 3699 INCHES
60 3220, 3230, 3240, 3345, 3699 INCHES
10:1 7507, 7513 INCHES
20:1 7507, 7513 INCHES
40:1 7507, 7513 INCHES

METRIC CALIBRATIONS (AKA "INTERNATIONAL" CALIBRATIONS):

Calibration  Product Code #s Units of Measure
1:1 3412, 3432, 3452, 3453, 7508, 7514 CM
1:2 3412, 3432, 3452, 3453, 7508, 7514 CM
1:5 3412, 3432, 3452, 3453, 7508, 7514 CM
1:10 3412, 3452, 3453, 7508, 7514 CM
1:20 3412, 3414, 3432, 3452, 3453, 3699, 7508, 7514 CM
1:25 3434, 3454, 3455, 3699 CM
1:50 3412, 3414, 3432, 3452, 3453, 3699, 7508, 7514 CM
1:75 3414 , 3699 CM
1:100 3410, 3414, 3430, 3450, 3451, 3630, 3650, 3699, 7508, 7514 CM
1:125 3414, 3434, 3454, 3455, 3699 CM
1:200 3410, 3430, 3450, 3451 CM
1:250 3410, 3430, 3450, 3451 CM
1:300 3410, 3430, 3450, 3451 CM
1:400 3430, 3450, 3451 CM
1:500 3410, 3430, 3450, 3451 CM

See the "Scales Explained" document to help understand how to use of each type of scale.

Downlaod Calibration Charts by Product Type: Pocket Scale Calibrations, Hollow Scale Calibrations, Solid Scale Calibrations, Color-Coded Solid Scale Calibrations, Architect & Engineer Straight Edges Calibrations, Select-a-Scale Calibrations, Joist-Truss Architect Scale Calibrations, Drafting Fan Calibrations,  and 4-Bevel Architect & Engineer Scale Calibrations.

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