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Selecting the appropriate pilot drill is critical to maximize performance and tool life of a succeeding deep hole or micro drill.

Reducing the L:D ratio provides an improvement in speed which then provides longer tool life, better surface finish and size control of the bore.

Some customers utilize twin cutter boring heads only as semi-finish tools.

Overall gripping strength increases as you increase the size of your tool holders (when looking at the same type of holder).

Even among experienced machinists, choosing the right insert for boring a hole remains a difficult process that is fraught with myth and misconception. However, it is no myth that insert selection can completely save or kill performance on an application.

Hydraulic chucks are an excellent choice for high accuracy applications due to their ability to maintain runout accuracy over an extended period of time.

Adjusting screws are not just a simple set screw. They are a screw with a purpose—three actually.

The is no general rule to cutting tool shank insertion as a multiplier for shank diameter. All tool holder types have different requirements.

Cleanliness is key to achieving good runout control when assembling tool holders. Small particles or oil in a tool holder can cause large runout of the cutting tool, deceasing tool life and performance.

When using a mechanical milling chuck that implements a needle bearing cage the correct clamping position will vary.

Coated carbide micro deep hole drills manufactured by SPHINX Tools can reliably create wire EDM starter holes up to 5x faster than traditional wire erosion techniques.

When using a high-performance drill, we do not recommend turning on coolant until the drill is inside a 1-2xD deep pilot hole.

Did you know we have a stand-alone catalog containing 14 precision micro end mill geometries?

Did you know Sphinx offers 3 unique drill/reamer geometries capable of drilling from a solid while achieving H7-H9 hole tolerance with exceptionally good surface finish?

Proper clamping techniques will ensure the proper operation of all mechanical milling chucks.