Saber 8013-F5 HSS-Co5 (Cobalt) Jobber Drill Set

• HSS-Co5 (Cobalt) Jobber Drill Set 1/16 - 1/4" x 1/64" rises, 9/32 - 1/2" x 1/32" rises.
• ABS Plastic.
• 21 Pieces.

135° Split Point (crankshaft point)

• Split point is self centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust.
• The 135° point should be used to cut harder steel materials especially in deep hole applications.
• In these situations it will produce thicker chips minimising work hardening of the cavity.
• Faster penetration reduces abrasion and friction along the cutting edges.
• Cobalt HSS jobber drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.

Drill Bit Surface Treatment

• Bronze Finish (gold oxide).
• The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.