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Cle-Line C20749 silver and deming drill bit 49/64 inch black oxide finish

Cle-Line

Cle-Line C20749 118 Degree Silver & Deming Drill 49/64 in 1/2 Reduced Shank

SKU CH-093F-4XHXW

A reduced-shank drill bit with a 49/64 inch diameter and 118-degree point angle made from high-speed steel with black oxide finish

  • Product typeDrill Bits
  • Main materialHAWA
  • 49/64 in drilling capacity with 1/2 in reduced shank
  • 118 degree point angle centres accurately on contact
  • High speed steel construction resists wear in tough materials
  • Black oxide finish reduces friction and chip welding
  • Cle-Line C20749 built for reliable heavy-duty performance

Cle-Line C20749 118 Degree Silver & Deming Drill

The Cle-Line C20749 is a Silver and Deming drill bit designed for drilling large diameter holes in metal. It features a 49/64 inch cutting diameter and a 118 degree point angle for general purpose machining. The bit is constructed from High Speed Steel with a Black Oxide finish for durability. It suits machinists and maintenance personnel requiring a reduced shank tool.

1/2 Reduced Shank Fits Standard Chucks

The 1/2 inch reduced shank allows this large diameter bit to be used in standard drill chucks with smaller capacity. Installation is straightforward: insert the shank fully and tighten the chuck securely to prevent slippage. A common issue is the bit spinning in the chuck under heavy load if the jaws are not tight enough. Ensure the workpiece is clamped rigidly to avoid the bit grabbing or walking during the cut.

Verify Chuck Capacity and Material Compatibility

Before ordering, confirm your drill press or hand drill accepts a 1/2 inch shank and has sufficient power and torque for a 49/64 inch hole. Check that the High Speed Steel material and 118 degree point angle are appropriate for the specific metal alloy you intend to drill. The Black Oxide finish aids chip flow in ferrous metals but may not be ideal for non-ferrous materials.

How it compares

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

Price $21.99
Cheaper than about 60% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLE-LINE
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

How can I verify the 118 degree point angle is cutting correctly after setup?

Drill a test hole in scrap metal; the bit should centre itself without walking and produce even chips, confirming the 118 degree geometry is working as intended.

What does the package contain and what must I supply separately?

The box includes the Cle-Line C20749 drill bit with 49/64 inch diameter and 1/2 inch reduced shank; you must provide a compatible drill chuck and cutting fluid.

When should I choose the 49/64 inch 118 degree version over other sizes?

Select this 49/64 inch bit when the hole diameter matches that exact fractional size and the 118 degree point suits general-purpose drilling in steel or cast iron.

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