CLEVELAND Screw Machine Drill Bit: #28, 135° Split Point, TiN-Coated Cobalt
The CLEVELAND Screw Machine Drill Bit #28 is a TiN-Coated Cobalt, Fast Spiral drill bit with a 135° Split Point, designed for deep hole-drilling. With a diameter of 0.1405 inches (MPN C14389), it delivers precise…
SKU 3G-OTH-413529
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Product Description
The CLEVELAND Screw Machine Drill Bit #28 is a TiN-Coated Cobalt, Fast Spiral drill bit with a 135° Split Point, designed for deep hole-drilling. With a diameter of 0.1405 inches (MPN C14389), it delivers precise, consistent performance in demanding industrial applications.
Frequently Asked Questions
What is the CLEVELAND Screw Machine Drill Bit #28 used for?
The CLEVELAND #28 screw-machine drill bit is designed for deep-hole drilling in metalworking applications. Its fast-spiral flute geometry efficiently evacuates chips, making it suitable for automated machining centers and production environments where precision and chip clearance are critical.
What are the specifications of the CLEVELAND C14389 drill bit?
The CLEVELAND C14389 is a #28 screw-machine length drill bit with a 0.1405-inch diameter. It features a 135° split point for reduced walking, TiN-coated cobalt construction for heat resistance, and a fast-spiral flute design optimized for deep-hole drilling in ferrous materials.
Where to buy CLEVELAND C14389 drill bits worldwide?
3G Electric supplies the CLEVELAND C14389 TiN-coated cobalt drill bit worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this precision tool.
How to select the correct screw-machine length drill bit for deep-hole drilling?
Select a bit with a split point (like CLEVELAND's 135°) to prevent walking on contact. For deep holes, choose a fast-spiral flute design and a cobalt substrate with TiN coating for heat resistance. Match the diameter (e.g., #28 / 0.1405 in) to your hole tolerance requirements.
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Common applications for CLEVELANDCLEVELAND Products
3G Electric supplies CLEVELAND cobalt screw-machine length drill bits for deep hole-drilling. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















