Cle-Line C21160 15-piece 135° mechanics length drill bit set

15-piece mechanics length drill bit set

The Cle-Line C21160 provides a 15-piece assortment of mechanics length drill bits designed for general-purpose drilling tasks. The bits feature a 135-degree split point that reduces walking and allows for easier penetration on contact. They are constructed from high-speed steel with a black oxide finish to resist corrosion and extend tool life. This set suits technicians and tradespeople who need a range of sizes in a single package.

135-degree split point and high-speed steel

The 135-degree split point geometry centres the bit quickly without a centre punch, lowering the thrust required during normal use. High-speed steel construction maintains hardness at the elevated temperatures generated when drilling steel and other hard materials. The black oxide surface treatment helps retain cutting lubricant and reduces friction during operation. Right-hand cutting direction matches standard drill chucks and driving tools.

Black oxide finish and right-hand cutting

The black oxide coating provides a layer of corrosion resistance that protects the bits during storage and transport. Right-hand cutting orientation ensures compatibility with all common drill motors and impact drivers without the need for reverse-specific tooling. Mechanics length proportions offer a balance of rigidity and reach for work in confined spaces. The 15-piece count covers a spread of diameters for everyday maintenance and fabrication jobs.