Product application

Product features

• Shars tools are manufactured by an ISO 9001 certified manufacturer with 60 plus years of hands-on experience in

 the CNC machining industry. Shars tools manufacturer is also an OEM that produces highest quality European

 brands. The manufacture really pays attention to the details onthe retention knob, as shown here on the flange, the

 straight neck, and the pilot.  Each knob goes through a magnetic particle test after heat treatingto prevent crack line’s

 and after this testing procedure, each knob will be precision ground on all critical contact surfaces, including the pilot

 underneath the flange area.  The pilot will ensure the retention knob body makes a better contact with the tool holder

 next to the threads which will reduce the vibrationand minimize TIR on the overall system (tools holder + retention

 knob).

• Other low price import pull stud are made from 45 medium carbon steel , but Shars pull stud is made from fine

 alloy steel, 20CrMnTi with heat treatment to HRC 56-58, which is equal to USA material 8620, better
 performance than 45 medium carbon steel. The price for 20CrMnTi is double of 45 medium carbon steel. After
 the forging process, the raw material can maintain the mechanical performance and flow line. This will ensure the
 life and stability of the material, after the material has been run through several heat treatment processes. 

• Using high quality alloy steel 20CrMnTi forging, the material is metallographic dense, uniform and stable.

 After carburizing, the outside of material is hardened, and the inside of material is still soft and has
 enough toughness. Therefore, Material has higher wear resistance and better toughness.

• Other low price import pull stud’s are machined by a turning process, but Shars pull stud’s are fully ground by

 CNC on all critical surfaces including a pilotunder the flange of retention knob for full contact between tool
 holder's taper end and retention knob. Precision grinding pull stubs have higher surface finish and dimension
 accuracy.  The fitting accuracy is obviously higher than that of machine pull stubs, effectively reduces the error of
 machine tool and cooperation, so as to improve the accuracy and stability of the connection and improves the
 precision of the machine tools and lengthens the service life.

• Precision finished on the bottom of the flange to improve fitting with the bottom nose of the taper on the tool

 holder

• For details of the processing quality of ground pull studs surface finish, please see the following picture

 which shows the pull stub by half black oxide finish.

• High quality black oxide finish can ensure long pull stub life and a non-rusting surface. The following picture

 shows the pull stub after black oxide finish

• Magnetic particle inspection is used for crack detection to avoid accidents from occurring because of micro defects.
• Retention knobs are magnetic particle tested before left manufacturer. The following picture shows Crack detector.

• Fits on Hurco, Mazak, Okuma, Fadal

We also have retention knob for Fadal, Mazak, Hurco and other mill, please contact us 1-630-443-3244 or 

visit our Ebay store:

    

SHARS 6" 670V Milling Vise +/-0.0004      

• 6" wide jaw plate, 7.50" inner jaw opening, 15.80" outer jaw opening
• Made from 80,000PSI stress relief cast iron
• Vise bed hardened to 45 HRc and jaw plate hardened to 54 HRc
• Bed height Tolerance 2.875" +/-0.0005"
• Clamping repeatability +/-0.0004"
• Lifetime limited warranty

SHARS 6" 660U Milling Vise +/-0.0004      

• 6" wide jaw plate, 6.25" inner jaw opening, 15" outer jaw opening
• Single piece of stationary jaw and vise body to enhance clamping rigidness and accuracy
• Made from 80,000PSI stress relief cast iron
• Vise bed hardened to 45 HRc and jaw plate hardened to 54 HRc
• Bed height Tolerance 3.189" +/-0.0005"
• Clamping repeatability +/-0.0004"
• Lifetime limited warranty
  

SHARS 6" 600DS Double Station Milling Vise +/-0.0002      

• 6" wide jaw plate
• 4.9" jaw opening in double station, 12" jaw opening in single station (conversion kit included)
• Unique leadscrew design to allow to clamp either same sized or dissimilar sized parts
• Jaw lift prevention mechanism by eccentric pin design
• Made from 80,000PSI stress relief cast iron
• Vise bed hardened to 45 HRc and jaw plate hardened to 54 HRc
• Bed height Tolerance 3.25" +/-0.0005"  (matched bed height at no additional cost)
• Clamping repeatability +/-0.0002"
• Lifetime limited warranty

Other special offers in our Ebay store:

New 3 CAT 40 ER32 Chucks+6  Collets+3 Pull Studs+Wrench