TPDB

 Indexable Drill for High Precision and High Efficiency Top Solid Piercing Drill Blade

• High Precision Clamping System High precision ground insert and auto-centering
• Screw-on Clamping Clamping system for an easy and quick insert change
• Excellent Surface Finish Reduced surface roughness and extended tool life due to low cutting force, excellent chip control, ultra fine substrate and advanced coating technology

TPDB Stable Tool Life Proprietary substrate and coating technology Special surface treatment on holders High Precision Hole Making Auto-centering and high precision ground insert Superior clamping accuracy Excellent Chip Control and Surface Finish Unique chip breaker shape Cutting edges with low cutting resistance Advantages [ Holder ] [ Insert ] – – Top solid Piercing Drill TPD Top solid Piercing Drill TPD Insert type B : Blade type B A : Inch type No code : Metric type A Drill dia. 0625 : Ø0.625” (Ø15.88mm) 0625 Insert type B : Blade type B A Type A : Inch type No code : Metric type Aspect ratio 3D, 5D, 8D 5 Drill dia. 0610 : Ø0.610” (Ø15.49mm) 0610 Shank dia. 075 : Ø0.75” (Ø19.05mm) 075 Shank shape Code System KORLOY’s new indexable drill is released. TPDB uses a convenient insert change system while being economical. The TPDB inserts ensure excellent hole quality thanks to high accuracy manufacturing process and strong clamping system. It is specifically engineered for making deep holes with diameters bigger than Ø10 and deeper than 8 times of the drill diameter (8D). Therefore the TPDB is a reliable alternative to solid and brazed drills. The TPDB additionally features KORLOY’s proprietary three dimensional chip breakers on the flutes. This system improves chip control and chip flow for an excellent surface finish. Its advanced holder surface treatment and insert coating technology maximize the tool life. The TPDB also takes advantage of S-shaped cutting edges that have high rigidity and help achieve vibration-proof drilling with small horse power machines. Our first recommend universal grade is the PC5300, and for carbon steels where built-up edges are heavily common PC5335 is recommended.