คุณลักษณะ

• Cushion drill (for ironwork) 3-piece set.
• High-speed drilling is possible due to drastic core run-out.
• Good bite and no punch (marking to center the hole to prevent the drill tip from escaping).
• (Adopted for effective 3.0 mm or more.).
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• High hardness HSS (High-Speed Steel) for sustained sharp sharpness.
• The cushion drill is integrated with the grooved drill on its axis with a press stop.
• (In order to enhance the bonding strength, 2 sides are cut for 1.8 mm and above.).
• In addition, the resin ring suppresses wicking and rattling, thereby achieving accurate drilling.
• The Kessak drill is machined so that the angle of the spiral (flute) is gentle from the tip to the root (shank side), so the chips are discharged smoothly and drilling can be performed at high speed.
• For drilling of various types of iron, light metal, synthetic resin, wood, etc., and bottom drilling for tapping.