The ACE Spot Drill 99688 is used for high-speed machining of center holes, the F feed speed is as high as 2000mm/min, and two center holes can be drilled in one second. The cutting insert type design allows quick tool change, and is the best choice for production lines in the generation of labour shortage. The processing materials cover a wide range: center hole drilling of steel, quenched and tempered steel, aluminum alloy, copper alloy, stainless steel, and corresponding cutting insert are available for selection.
