 Dormer H853 12.50Mm Hydra Drill Body (X3D) in UK Specification
GBP 126
(Indicative price - actual current price possibly lower)
Features & benefitsmaterialreplaceable heads in tough micrograin carbide and hardened steel body with high gloss nickel plating for high resistance to wear and corrosion. One body accommodates multiple head sizes with no compromise on tool rigidity and structural integrity.Surface treatmenttitanium aluminium nitride based coating on the drilling heads for high toughness and oxidation stability - enables high speeds and feeds and resists 'built-up edge' which is common when machining softer materials.Point geometrythe self-centring 140 four facet split point geometry ensures that required thrust force is low. Predrilling/centre drilling is neither necessary nor recommended.Shankcylindrical shank with flat for multi-purpose tool holding. Allows accurate clamping for reliable use of internal coolant. Best results are obtained using hydraulic holders such as the dormer hydro-grip; can also be held in er type and weldon type toolholders.Geometryheads are held securely in place by two screws; the perfect fit of body and head serrations transmits the torque evenly and allows for precise and easy assembly. The slow spiral offers optimised flute volume for efficient chip evacuation.Internal coolantcoolant holes in the drill bodies are aligned perfectly with the replacable heads for efficient delivery of coolant directly to the cutting edge.
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