Cleveland
Cleveland Jobber Drill #8 Cobalt 135° Split Point .1990 C16619
Cobalt jobber drill bit with 135° split point for precise drilling in hard materials
- TypeDrill Accessories
- MaterialHAWA
- Cobalt construction resists heat and wear
- 135° split point starts on contact without walking
- TiN coating extends cutting life
- #8 wire gauge equals .1990 inch diameter
Jobber Length Drill Bit #8
This Cleveland drill bit is a jobber-length accessory sized at #8 with a 135-degree split point. It is made from cobalt steel with a TiN coating for drilling into hard materials. The decimal equivalent of the size is .1990 inches. It is designed for general-purpose drilling tasks in metalworking applications.
Practical Limits of Cobalt Drill Bits
Cobalt bits handle high heat better than standard high-speed steel but are more brittle and can chip if the workpiece moves. The split point reduces walking on flat surfaces yet offers less benefit on curved or angled stock. The TiN coating adds lubricity but wears away over time, after which cutting performance reverts to the base cobalt substrate. This bit has no coolant-through channels, so deep holes require frequent withdrawal to clear chips and manage temperature.
Highlights
- Cobalt construction resists heat and wear
- 135° split point starts on contact without walking
- TiN coating extends cutting life
- #8 wire gauge equals .1990 inch diameter
Specifications
| Brand | Cleveland |
|---|---|
| Type | Drill Accessories |
| Material | HAWA |
Questions about this item
Should I choose the #8 size with a .1990 decimal equivalent for my drilling task?
The #8 size gives a .1990 inch hole; match that to the fastener or clearance you need.
How does the 135° split point perform once the bit is in the drill?
The 135° split point reduces walking and starts the hole cleanly in metal without a centre punch.
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