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COGSDILL TOOL PRODUCTS, INC.MRBTMicro RollerBurnishing TOOLS Compact design for use where limited space is available onmulti-spindle automatic and screw type machines. Internal tools from 0.187–0.501 inch (4.75–12.73mm) in thrustyle, and bottoming style larger than 0.246 inch (6.25mm). External tools from 0.054–0.254 inch (1.37–6.45mm) inbottoming style. Unique rear adjustment mechanism.

Internal Micro Roller Burnishing ToolNOMINALSIZE2DIAMETER RANGEINCHESTHRU ( NO HELIX)BOTTOMING ( NO 484 COGSDILL TOOL PRODUCTS, INC.

Internal Micro Roller Burnishing ToolNOTE: 0.750 INCH DIAMETER SHANK OPTIONALTOOL # MR-188 SHOWNNotes:SIZEDETAIL NO. 11MANDRELDETAIL NO. 13CAGEDETAIL NO. -484-D11MR-484-D13"" For bottoming cage, use prefix MRB. Only for tools larger than 0.246 inch (6.25mm). For bottoming rolls, use prefix SRB. Only for tools larger than 0.246 inch (6.25mm). COGSDILL TOOL PRODUCTS, INC. 3

External Micro Roller Burnishing ToolNOMINALSIZE4DIAMETER RANGEBOTTOMING ( NO .156.45EMR-250 COGSDILL TOOL PRODUCTS, INC.

External Micro Roller Burnishing ToolNOTE: 0.750 INCH DIAMETER SHANK OPTIONALTOOL # EMR-250 SHOWNSIZEDETAIL NO. 11RACEDETAIL NO. 13CAGEDETAIL NO. "5 COGSDILL TOOL PRODUCTS, INC. 5

Internal Micro Roller Burnishing Tool THRUST BEARING & RACES (4) MANDREL CAGE ROLL WAVE SPRING (2) THRUST BEARING& RACES (4) RETAINING RINGPIN DRIVEPIN ADJUSTMENT KNOBSOCKETSET SCREW ADJUSTMENT SPRING SPRING RETAINER HOUSING BUTTON HEAD SCREW SHANKASSEMBLY/DISASSEMBLY FOR CHANGING ROLLS, MANDREL & CAGE To replace Cage and/or Rolls, remove carefully the Retaining Ring at the front of the Housing.Note that this area is under spring pressure. Remove all of the components from over the Mandrel. Inspect all components. Clean and lubricate all components. Replace Rolls and Cage if required. Note that Rolls should be replaced as a complete set. Re-assemble and check tool adjustment. To replace Mandrel and/or Rolls, pull Adjustment Knob away from the Housing and unscrew theAdjustment Knob to remove the Shank and Mandrel from the Housing. Loosen the Socket Set Screwin the Shank to remove the Mandrel.ASSEMBLY/DISASSEMBLY TIP: As the Rolls are small and easy to lose, it is suggested towrap a clear plastic tape around the roll pocket area of the cage. This will retain the Rollsin the Cage and can also be used as an aid when assembling Rolls back into the Cage. The Rolls will be free to be removed from the Cage at this time. Inspect all components. Replace Rolls and Mandrel if required. Note that Rolls should be replaced as a set. Re-assemble and check tool adjustment.Refer to the Burnishing Tools & Machines catalog for part preparation and operatingparameters, including speed and feed recommendations and coolant requirements.6 COGSDILL TOOL PRODUCTS, INC.

External Micro Roller Burnishing Tool NEEDLE BEARING BRONZE STOP ROLL CAGE WASHER SPRING THRUST BEARING &RACE (2)RETAININGRING PIN RACE SOCKETSETSCREW (3) ADJUSTMENT KNOB DRIVEPIN ADJUSTMENT SPRING SPRING RETAINER HOUSING BUTTON HEAD SCREW SHANKASSEMBLY/DISASSEMBLY FOR CHANGING ROLLS, RACE & CAGE Loosen the three Socket Set Screws in the Housing to allow removal of the complete Race Assembly. Inspect all components. Clean and lubricate all components. Replace Rolls, Race and Cage if required. Note that Rolls should be replaced as a complete set. Re-assemble and check tool adjustment.TOOL ADJUSTMENT – INTERNAL & EXTERNAL Adjustment is made from the back end of the tool. Adjustment Knob has 20 equally spaced lines that representan adjustment of 0.0001 inch (0.0025mm) on the diameter. Pull Adjustment Knob away from the Housing to disengagethe Pin in the Housing from the Adjustment Knob. Turn Adjustment Knob as required to adjust the Burnishingtool diameter. Release the spring loaded Adjustment Knob to engage thePin in the Housing. Check and make further adjustments as required. COGSDILL TOOL PRODUCTS, INC. 7

OTHER PRODUCTS FROMCOGSDILL TOOL PRODUCTS, INC.ShefcutPrecision Reamers& PRECISIONBORINGTOOLSDeburringTOOLSZXBORING, FACING,& CONTOURINGSYSTEMSAutomatic Recessing& BACK-CHAMFERING TOOLSCOGSDILL TOOL PRODUCTS, INC.Mailing AddressP.O. Box 7007Camden, SC USA 29021-7007Ph. (803) 438-4000Fax (803) ILL-NUNEATON LIMITEDSt George’s WayBermuda Industrial EstateNuneaton, Warwickshire, CV10 7QT, UKPh. 44 (0) 2476 383792Fax 44 (0) 2476 ng Address1001 Guion DriveLugoff, SC 29078Visit us onlineFOR ADDITIONAL INFORMATIONwww.cogsdill.comB ROCH U R E NO. 501 U.S. 03-16 COPYRIGHT 2016 COGSDILL TOOL PRODUCTS, INC.

3 Internal Micro Roller Burnishing Tool COGSDILL TOOL PRODUCTS, INC. SIZE DETAIL NO. 11 MANDREL DETAIL NO. 14 ROLLS DETAIL NO. 13