CRL UV Lock for Single Inset or Overlay Glass Doors - Keyed Alike Marking Tools UVBL15 is a good option

UVBL15 is a good option for 1/4" and Thicker glass application

but also makes this style of drill more fragile

by tablespoon

Number/Size of Vacuum Pads: 4/10" (254 mm) Diameter Lipped Vacuum Pads

CRL UV Lock for Single Inset or Overlay Glass Doors - Keyed Alike Marking Tools UVBL15 is a good optionAvailable in Brushed and Polished Stainless Steel Single Inset or Overlay Lock CRL's Versatile UV Lock can be used for both single inset or overlay glass doors. Requires drilling a 1" (25 mm) diameter hole in the glass door, with adhesive applied to rear surface of cover plate, and bonding the latch to the glass side panel. Each Lock includes a 1 7 8" (48 mm) short cam for overlay doors and a 2 3 8" (60 mm) long cam for inset doors. Designed for 'all