Cmt 317.280.12, 28 X 57.5 Left-Hand Hinge Boring Bit

4.4 stars, based on 63 reviews

USD 32.75
In stock

28 x 57.5 Left-Hand Hinge Boring Bit Hinge boring bits to set a new standard for performance and value! This bit features new downcut round sharpening for a more precise cut and extra-fine micrograin carbide for endurance and a faster feed speed

2 precision ground cutting edges, 2 spiral flutes, 2 negatively ground spurs

Features 57.5mm 2-17/64-Inch Overall Length

Ideal for hinges

PTFE-Coating provides a non-stick surface that prevents residue accumulation on the bit, special metal shock resistant brazing guarantees a solid bond of every tip on every bit and the steel shank grinding allows for a perfectly-fitting insertion of your tool into your machine

Premium quality super-strength steel body and spiral portion with center point

Tool has 2 precision ground cutting edges and 2 negatively ground spurs

Used for drilling accurate and clean-cut blind holes in wood, wood composites, laminated materials.

Used on boring machines equipped with chucks or adaptors

We use the finest industrial quality micrograin carbide to produce very sharp cutting edges and improve cutting resistance