**LEFT HAND DRILL JOBBER SET COBALT HSS-Co5**
Upgrade your workshop with this premium Left Hand Drill Jobber Set, crafted from high-performance Cobalt High-Speed Steel (HSS-Co5). Designed for professional use, these left-hand drill bits are ideal for removing broken fasteners and drilling tough materials such as stainless steel, cast iron, and alloy steels. The set offers superior durability, heat resistance, and precision, making it a reliable choice for demanding industrial and automotive applications.
Sizes Included
19/64, 1/4, 5/32, 7/64 and 5/64
Key Features
- HSS-Co5 (Cobalt) Left Hand Twist Drill Set
- Bordo Fractional Left Hand Cobalt Tough HSS-Co5 Twist Drills.
- 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 Twist drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
- Left Hand Twist drills are ideal for use with screw extractors to remove broken bolts and screws.
- Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.
This Left Hand Drill Jobber Set delivers exceptional performance and reliability, meeting the rigorous standards of trade professionals across manufacturing, maintenance, and engineering sectors.
