G-D938-A12C SHANK 12D Internal Cooling Twist Deep Drills for Steel 12D Specification:G-D938-A12C-0940 Bidirectional adjustment in axial and

Bidirectional adjustment in axial and radial is available

Fine knuckle-type teeth design gives super fine and short chip

increasing cutting efficiency and surfacequality

5mm radial stroke

G-D938-A12C SHANK 12D Internal Cooling Twist Deep Drills for Steel 12D Specification:G-D938-A12C-0940 Bidirectional adjustment in axial andD938 Series Deep Hole Internal Coolant Twist Drill Suitable for efficient drilling of steel, cast iron and stainless steel New substrate material, perfect balance of toughness and wear resistance Using AlTiN nano coating and unique post processing of coating Optimize groove profile and drill point design, with super self centering performance, chip breaking performance and good chip evacuation performance