Cobalt Silver & Deming Drills

Applications

• Cobalt offers better wear resistance, higher hot hardness & toughness when compared to high speed steel.
• Cobalt also provides less chipping under severe cutting conditions allows tool to be run 10% faster than high speed steel.
• Primarily designed as tools for heavy duty drilling of larger holes requiring reduced diameter straight shank drills.
• Suitable for most drilling operations in a wide array of materials having low and medium tensile strength ratings.
• Intended for those applications where only a 1/2" chuck is available to drive the drills.
• May be used with a wide range of portable or stationary machine tools and with hand held manual drills.
• For optimal performance and the best tool life suitable lubricating/cutting oils or the appropriate coolant fluids are recommended.

Features

• Right hand (clockwise rotation) cutting direction.
• Standard two flute design.
• Standard spiral, helical flutes.
• All drills have reduced shanks that are 1/2" in diameter.
• Available in individual size drills or in sets.
• Some TTC Production sizes may be supplied in 135° drill point.

• 118° point angle and standard web thickness.
• Metal index.

• 118° split point.
• Plastic case.

Technical Data

• Manufactured from cobalt steel.
• Surface treated.
• Black and bright finishes.

• 118° point angle and standard web thickness.

• 118° split point and are self-centering.

Notes

• Special care should be exercised to avoid bending or shearing the reduced diameter drill shank.