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• Drill Chuck is screwed from the back to ensure it does not come out during high cutting loads
• Balanced to G2.5 @ 20,000 rpm, but rated safe operation speed is 8000 rpm
• All critical tool holder surfaces precision ground
• Made from alloy steel hardened to 54 - 56rc
• Gage length is 3.0 inches
• Body diameter of chuck is 1.5 Inches
• This Drill Chuck can hold shanks from .01-.315 (.25-8mm)
  
• Rear thread for pull stud is 5/8-11
• Max runout is .0015"
• Wrench included
• Not coolant thru capable
• Max drill depth when clamping min diameter drill is .8"
• Max drill depth when clamping min diameter drill is 1.025"
• MariTool Part# is CAT40-APU08