Keep-Nut Manual Drill Bit, 11.4mm, 5/8″-11 Thread for Natural Stone and Quartz



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The 11.4mm Manual Keep-Nut Drill Bit with a 5/8″-11 thread w/ Stop Collar is ideal for Keep-Nut anchor drilling when using a grinder or polisher for use on natural stones and engineered quartz. Recommended to be used in conjunction with our KDM115 Electric Drilling Machine. Each 11.4mm drill bit comes with a stop collar to set repeatable depths for consistent, accurate drilling. 

  • For use on: Natural Stone and Engineered Quartz
    • For Porcelain and Sintered Stones: CCH-KNBITGRI-11.4-D
  • Recommended to be used on KDM115 Keep-Nut Electric Drilling Machine
  • Used with a manual stone polisher with a water attachment
  • 5/8-11 thread attachment
  • Stop Collar Included to ensure the correct depth is achieved
  • 3500-4000 RPM recommended


Note: Freehand drilling, although not recommended can be done. If doing so, please see the instructions below for tips to lessen the risk of a wobble factor.


Additional information

Weight 0.25 lbs
Dimensions 1.00 × 2.75 × 1.00 in

Thread Size

Keep Nut Allen Post

Must Ship Freight


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