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Cle-Line C20497 extra-long HSS drill bit with black oxide finish

Cle-Line

Cle-Line C20497 118 Degree Extra Length Drill 1807 Steam Oxide HSS

SKU CH-0SGJ-Y3Q0K

Extra-long high-speed steel drill bit with 118-degree notched point for general-purpose machining

  • Product typeMilling
  • Extra length reaches deeper holes up to 2 in
  • 118 degree point angle starts cleanly in steel
  • High speed steel body resists heat during cuts
  • Steam oxide finish reduces friction and wear
  • Helix angle range 21 to 34 degrees clears chips efficiently

Cle-Line Extra-Length Drill Bit 1/2 in

The Cle-Line C20497 is a fractional-inch drill bit with a 1/2-inch diameter and an extra-length design rated at 4xD. It features a 118-degree notched point made from high-speed steel with a black oxide finish. This accessory is intended for general-purpose machining in power and pneumatic tools.

Suited for deep-hole drilling in general materials

This bit suits machinists who need extended reach for holes up to 2 inches deep in standard workpieces. It is not for operators who require a different point angle or a specialised coating for hard steels or stainless alloys. Buyers needing a shorter flute length or a different shank style should look elsewhere.

118-degree notched point angle

The 118-degree notched point is the specification that determines whether this drill matches the application. It governs how the bit centres and cuts in general-purpose materials. Verify that this angle and the 4xD length align with the machine setup and the workpiece requirements before purchase.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $51.99
Pricier than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLE-LINE
Product typeMilling

Questions about this item

What does the 118-degree point angle mean when the drill is in a real machine?

The 118-degree point angle is a general-purpose geometry suited for drilling steel, cast iron and similar materials in a standard drill press or handheld drill.

How does the 21 to 34-degree helix range affect chip removal in practice?

The 21 to 34-degree helix provides a balance between chip evacuation and edge strength for general-purpose machining in steel and iron.

What does the 4xD designation tell me about the physical length needed to mount this bit?

The 4xD designation indicates a flute length roughly four times the 1/2-inch diameter, so the bit requires a chuck or holder that can accommodate that extra-long reach.

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