CLEVELAND Jobber Length Drill Bit: Letter T, 135° Split Point, Black Oxide Cobalt
The CLEVELAND Jobber Length Drill Bit (Letter T, MPN C15978) is a short-flute cobalt drill bit with a 135° split point, black oxide finish, and fast spiral geometry. It features a 0.3580-inch diameter, designed for…
SKU 3G-OTH-213670
Also listed as: C 15978 · C-15978
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The CLEVELAND Jobber Length Drill Bit (Letter T, MPN C15978) is a short-flute cobalt drill bit with a 135° split point, black oxide finish, and fast spiral geometry. It features a 0.3580-inch diameter, designed for efficient chip evacuation in industrial drilling applications.
Frequently Asked Questions
What is the CLEVELAND C15978 jobber length drill bit used for?
The CLEVELAND C15978 jobber length drill bit is used for drilling precise holes in hard materials like stainless steel and alloy steels. Its 135° split point reduces walking and requires less thrust, making it ideal for production machining and maintenance applications across industrial sectors.
What are the specifications of the CLEVELAND C15978 drill bit?
The CLEVELAND C15978 is a letter T jobber length drill bit with a 0.3580 inch diameter, 135° split point, black oxide cobalt finish, and fast spiral flute design. It is a short-flute cobalt jobber-length drill bit designed for high-performance drilling in tough materials.
Where to buy CLEVELAND C15978 drill bits worldwide?
3G Electric supplies the CLEVELAND C15978 drill bit to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other CLEVELAND cutting tools.
How to select the right CLEVELAND jobber length drill bit for my application?
Select the CLEVELAND jobber length drill bit based on material hardness, hole depth, and required finish. For hard metals like stainless steel, choose cobalt with a 135° split point (like the C15978) to reduce thrust and improve accuracy. Match the letter or fractional size to your hole diameter specification.
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Common applications for CLEVELANDCLEVELAND Products
3G Electric supplies CLEVELAND short-flute cobalt jobber-length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
