Starrett/Webber Square Steel .550" Gage Block, Grade A1 Mahr Federal

Starrett/Webber Square Steel .550" Gage Block, Grade A1 Mahr FederalItem Description SQUARE STEEL . 550" NEW OPEN BOX PRODUCT NO.: SS . 550 A1 Please view photos. Multiple quantities in stock, photo(s) represent condition of all. The item you receive will be either the item pictured or comparable (or better) in appearance. California Residents Proposition 65 WARNING: This product contains lead a chemical known to the State of California to cause birth defects or other reproductive harm. For more information go to:

Federal specifications for accuracy

Blind bore anvils on all sizes except 1/4"—1/2"

55 mm feature blind bore capability

dirt and dust

Interchangeable anvils and necessary accessories to perform close tolerance ID measurements

Shank:  1/2″

Type:  ASME/ANSI /AGD

Will handle a wide variety of measurements impossible to obtain with regular micrometers

8425"/280mm

1-1⁄2" and 1-3⁄4" parallels are 1⁄2" thick

carefully ground and micro-lapped

Range: 0-12