MACHINIST’S LEVELS Contents - J.W. Donchin Co

1 Donchin CO. 4841-43 W. Chicago Ave. Chicago, IL 60651-3224Ph: 773-261-2182 Fax: 773-261-2867 ,comMACHINIST S LEVELSC ontentsPgDescriptionRange443 machinists LEVELS444 Level Use Precision machinists LevelsNos. 199, 98 and 132 SeriesMaster Precision LevelNo. 199 15 /380mm445 machinists LEVELS with ground and graduated vialsNo. 98 Series 4-18 /100-450mm446 Precision Bench LEVELS with double plumbsNo. 132 Series 6-24 /150-600mm447 Cross Test Level and PlumbNo. 134 2 x 3 / 50 x 75mmCross Test LevelNo. 136 2 3/4 x 2 3/4 / 70 x 70mm448 Bench LevelNo. 130 3 3/8 / 85mmPocket LEVELS with satin nickel-plated finishNo. 135 Series 2 1/2 and 3 1/2 / 63 and 88mmThis section shows our complete line of precision machinist and contractors LEVELS canbe found in the Jobsite & WorkshopTools section of the LEVELS444 Builders and Contractors LEVELS can be found in the Jobsite & Workshop Toolssection of the LEVELSL evel UseTo get a correct reading with a level, bothends of the bubble should be viewed.

2 If thegaps between the ends of the bubble andthe lines are unequal at any time, then theyshould be averaged out. The reason for thisis temperature, which affects the size of thebubble. As a level is warmed the liquidexpands, thereby reducing the size of thebubble so that at true-level there will begaps at both ends between the bubble andthe reading lines. Conversely, if thetemperature is very cold, the bubble couldexpand and overlap the reading hand heat on the center of thelevel for an extended period of time couldexpand the center, causing the workingsurface to become slightly convex and alsocreate a tendency to spin on flat is more noticeable on very level can be checked for accuracy onany flat surface regardless of whether it islevel or not. Simply put the level on thesurface and note the position of the reverse the level in the same spot. Ifthe level is true, the bubble will be in thesame relative position both models, like our No.

3 98 Seriesmachinist LEVELS with an adjustable system,have an adjustment that can be made onthe Vial InformationThe accuracy of a level is dependent on theproper machining of the working surface,the straightness, and rigidity of theconstruction and the sensitivity of the levelvial. Accuracies are very often specified inparts of degrees such as 10-secondaccuracy or 43-minute , we are referring to thesensitivity of the level vial, but manyinterchange these terms. Since this meanslittle to most people, we use the morepractical definition of inches per foot ofelevation. For instance, a 10-second vialaccuracy means if the level is on an inclinethat is .0005 per foot, then the bubble onthe vial will move .100 (slightly less than1/8 ).There are three general types of level vials are generally used in precisionlevels; bent glass and plastic vials are usedin most other level vials have just two lines spanningthe length of the bubble because mostusers just want to know if something is levelor more precise LEVELS have vials with anumber of reading lines on each side of thebubble.

4 All Inch reading vial graduations apart. This will show the machinist ina very precise manner how level theequipment reading LEVELS have vial graduations2mm apart and accuracies are usuallydescribed as millimeters per meter. This isan easy conversion to make, so weconverted our Inch specifications to anunderstandable metric reading. Machinistsonly need to know how far they are out oflevel if the bubble moves to the next BaseWidth BaseHeight LevelInchmmInchmmInchmmCatalog 380mm1 5/8 40mm3 75mm199Z50719199Z W/SLC*66932* Includes redemption card for Standard Letter of Certification (SLC).Sent in finished wood case. Packed one in a machinists LevelsNos. 199, 98 and 132 SeriesThese are the finest LEVELS available,used for precision work that is typicallyrequired in industry. They all have thesefeatures: All level bases are made from thefinest quality seasoned cast iron andare precision-machined on thereference surface Non-machined surfaces have anattractive, black wrinkle finish All models except the No.

5 199 havean involute longitudinal groovebetween the bearing flats foraccurate seating on round work. Thisgroove has a special involute design,permitting better centering andgreater capacity to handle largerrounds Groove and bearing flats aremachined together for maximumaccuracyMaster Precision LevelNo. 199 15 /380mmThis Master Precision Level is especiallydesigned to set up, check and testmachinery of all types. The efficiency ofmodern, high speed machinery depends toa large degree upon the levelness of themachine this Master Level you can tell at aglance the exact variation of the levelnessof the machinery and make the necessaryadjustments. Ground and graduated main vial of 10-second accuracy; one divisionequals 1/2 thousandth ( ) of aninch per foot, or per meter Main vials have seven graduations oneach side of the bubble Auxiliary level vial shows lateral positionand assists in horizontal setting Level vials are positioned so breakage isreduced to a minimum Fool-proof adjustment to avoidtampering, once set Special alloy iron used to obtainfreedom from thermal effects Castings are thoroughly seasoned and machined Reference surface is scraped Nonmachined surfaces have a blackwrinkle finish Insulation from handling by means oftop plate of nonconductive material445 machinists LEVELSSizeWithout CaseIn Finished Wood CaseInchmmDescriptionCatalog 100mmWithout Cross Test Vial98-450440 With Cross Test Vial98-6504416 150mmWith Cross Test Vial, Standard Letter of Certification* 98-6 W/SLC669358 200mmWith Cross Test Vial98-850442 With Single Plumb Vial and Cross Test Vial98-125044398Z-125044412 300mmWith Single Plumb Vial and Cross Test Vial.

6 Standard Letter of Certification*98-12 W/SLC6693498Z-12 W/SLC6693318 450mmWith Double Plumb Vial and Cross Test Vial98-185044598Z-1850446 NOTE:To guarantee extreme accuracy, the length of your level should not be longer than the work you are leveling.* Includes redemption card for Standard Letter of Certification (SLC). machinists LEVELS with ground andgraduated vialsNo. 98 Series 4 -18 /100 - 450mmThese LEVELS have ground and graduatedmain vials. All sizes have a cross test vialexcept the 4 (100mm) 12 (300mm) model also has a plumbvial and the 18 (450mm) size has a doubleplumb vials are adjustable to a positivesetting and are housed in a satin finishedbrass tube with a friction-fit closing coverto prevent base of the LEVELS features an involutegroove running the length of the base,which provides a reliable seat for roundwork such as pipes or the cross test vial, it is possible tosimultaneously level in both directions. Thisprevents inaccuracies in the main vialreading caused by canting the levelsidewise on round 6 through 18 (150-450mm) mainlevel vials have graduations that areapproximately 80-90 seconds or.

7 005 perfoot ( per meter). There are five,six, or seven lines on each side of thebubble, depending on the base , No. 98-12; bottom, No. view showing one in a LEVELSP recision Bench Levelswith double plumbsNo. 132 Series 6 -24 /150 - 600mmThese are moderately priced levelsdesigned for the all-around use ofmachinists, maintenance and set-upmechanics and carpenters. They areavailable in a wide range of sizes to suitevery requirement. The attractive filigree design of theselevels provides a lighter weight, and thecurved design evenly dissipates excessheat The base of the LEVELS has an involutegroove running the full length, whichprovides a reliable seat for round work All sizes have a main vial and doubleplumb vials. Each vial has twograduated lines The main vials have approximately 19-minute sensitivity, meaning if thebubble moves 1/8 off the graduatedlines, the out-of-level is per foot. If the bubble is off 2mm,then the out-of-level is per meterNo.

8 One in a view showinginvolute 150mm132-6505629 225mmWith Main Vial and Double Plumb Vial132-95056312 300mm132-125056424 600mm132-2450566 NOTE:To guarantee extreme accuracy, the length of your level should not be longer than the work you are LEVELSC ross Test Level and PlumbNo. 134 2 x 3 / 50 x 75mmThis is an especially useful little level,invaluable for plumbing, approximatesquaring and leveling work. Made from cast iron with a satin nickel finish, allworking surfaces are flat and true. The level has two vials at right angles for cross test leveling without moving the tool and a plumb level at the top forchecking squareness. An accurate,well-made and reliable tool, it is also very light and compact and can be easilycarried in the one in a Test LevelNo. 136 2 3/4 x 2 3/4 / 70 x 70mmSimilar to our No. 134 level, the No. 136has two vials at right angles which permitleveling in both directions without movingthe level from the work.

9 The level is lightand compact, with an attractive blackwrinkle finish and a ground one in a x 3 50 x 75mmWith Cross Test Vials and Plumb Vial13450569 SizeInchMillimeterDescriptionCatalog 3/4 x 2 3/4 70 x 70mmWith Cross Test Vials13650572448 machinists LEVELSB ench LevelNo. 130 3 3/8 / 85mmThis is a very handy, compact bench levelwith a sensitive and accurate single body is made of seasoned cast ironwith black wrinkle finish and an accuratelymachined base leveling one in a 3/8 85mmWith Main Vial13050560 Pocket LEVELS with satinnickel-plated finishNo. 135 Series 2 1/2 and 3 1/2 / 63 and 88mmAnother extremely useful Starrett level thatfits handily in the pocket with no sharpedges. Made from hexagonal stock withconvex ends and satin nickel-plated one in a 1/2 63mmWith Main Vial135A505703 1/2 Donchin Measuring Equipment and Industrial Supplies since W. Chicago Ave. - Chicago, IL 60651 Phone: 773-261-2182 Fax: 773-261-2867 Donchin Donchin Co.

10 Was established in 1924 and has been known world wide ever since. Customer Service is our Main Focus. We offerExpert Product Knowledge, Large Stocking Inventory and Competitive Pricing to assist you in locating and selecting the correcttool or product to fit your needs. ( Donchin Co. is one of Starrett s largest stocking distributors.)Contact Information:Phone: 773-261-2182 Fax: 773-261-2867 Email: Access Links (View specific information, click on any of the following) Latest Website Updates: Website: Quotes: Latest Promos: Line Card(Product Lines & Mfg)Catalog / Promo / Pricelist Starrett Mitutoyo Fowler Brown & Sharpe