PDP Evodrill P5-EDDC Dry Core Drill Bit 52 x 150mm with BSP Female Thread (½") DC12655 Collection_ArmcoRail The 23mm option is also

The 23mm option is also available in a 10

Full details on installation requirements can be found on page 11 of the TSRGD Guidelines

Adjustable directional airflow allows you to tailor the ventilation to your needs

then the Raptor from U-Power is a solid choice

PDP Evodrill P5-EDDC Dry Core Drill Bit 52 x 150mm with BSP Female Thread (½") DC12655 Collection_ArmcoRail The 23mm option is alsoThe EVODRILL is a high quality dry diamond core for use on hard materials such as concrete with hard aggregate, clay products, Indian sandstone and natural stones, regular building materials such as standard house bricks, concrete blocks, breeze blocks, handmade bricks, building blocks and York stone. EVODRILLS can be used on rotary and percussion action (not hammer action). The combination of the rotational function and subtle pulsing from the