MK-190 Premium Wet Diamond Core Bits
MK-190 Core Bits
  • Drill through porcelain, granite, marble, tile, stone, and masonry
  • No bond to wear away - diamond particles work at peak performance at all times
  • Vacuum Braze Technology provides the strongest bond between diamond particles and the drilling surface of core bit
  • Drilling Time Reduced by 50% compared with traditional metal-bond core bits
  • Core ejector slot clears debris and plugs during repeated drilling operations
  • Designed to operate on any corded or battery operated hand drill
  • Hollow bore creates a core that guides the drill
  • Heavy-duty, single piece construction
Diameter Part #
3/16" (5mm) 166641
1/4" (6mm) 166642
9/32" (7mm) 166972
5/16" (8mm) 166643
3/8" (10mm) 166644
1/2" (13mm) 166645
5/8" (15mm) 166646
3/4" (20mm) 166647
1" (25mm) 166648
1-1/4" (30mm) 166973
1-3/8" (35mm) 167169
Ceramic Tile
Hardness Grades
Soft Medium Medium/
Hard
Hard Extremely
Hard
Porcelain
Glass    
Quary
Terracotta    
Glazed    
Terrazzo      
Agglomerate
Cement      

Click here to download drill usage instructions in PDF format.
MK-190 Packaging