Only for Brazed Heads Grade DEEP DSRIOLILIDNCGA-RBITDAESDYSRITLELMS SELUESCETRIOGNUGIDUEIDE DEEP HOLE DRILLING Index Single Tube System Double Tube System Single Tube System (STS) – Double Tube System (DTS) - Cooling fluid is induced through the gap between Cooling fluid is induced between the coaxial the drill and the hole. Conveying the chips through tubes, conveying the chips through the inner tube the tube requires the use of dedicated machines. and can be applied on standard machines. Deep Drilling Heads Identification System D S D - E C XXX.XXX XX XX Hole Diameter I- Insert A- Adjustable Insert Chipbreaker C - Cartridge (letters) F- Fast Feed -or- Insert 0- Brazed, 1 tip, 1 thread start Chamfer Angle 1- Brazed, 1 tip (for boring) 2- Brazed, 2 tips (numbers) 3- Brazed, 3 tips E- External Thread I- Internal Thread D- Drill P- Steel C- Counterbore with Through Hole M- Stainless T- Counterbore without Through HoleTR -Trepanning K- Cast Iron N- Aluminum S- Single Tube D- Double Tube D - Deep Drilling/Counterbore I- Inch Deep Drilling/Counterbore S- Special Deep Drilling/Counterbore 0- Uncoated 1- TiAlN Coating Z- TiCrAlN Coating 191