Imperial - HSS Cobalt Jobber Drill Set in ABS Case

• Bordo Fractional Cobalt Tough HSS-Co5 Jobber Drills ANSI B94-11

All About 135° Split Point(crankshaft point)

• The 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 minimizing 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.

All About Drill Bit Surface Treatment

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

Contents

Title
Qty
1/16" HSS Cobalt Jobber
1
5/64" HSS Cobalt Jobber
1
3/32" HSS Cobalt Jobber
1
7/64" HSS Cobalt Jobber
1
1/8" HSS Cobalt Jobber
1
9/64" HSS Cobalt Jobber
1
5/32" HSS Cobalt Jobber
1
11/64" HSS Cobalt Jobber
1
3/16" HSS Cobalt Jobber
1
13/64" HSS Cobalt Jobber
1
7/32" HSS Cobalt Jobber
1
15/64" HSS Cobalt Jobber
1
1/4" HSS Cobalt Jobber
1
17/64" HSS Cobalt Jobber
1
9/32" HSS Cobalt Jobber
1
19/64" HSS Cobalt Jobber
1
5/16" HSS Cobalt Jobber
1
21/64" HSS Cobalt Jobber
1
11/32" HSS Cobalt Jobber
1
23/64" HSS Cobalt Jobber
1
3/8" HSS Cobalt Jobber
1