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Silver cylindrical extra-long drill bit with black oxide finish and notched point

Chicago-Latrobe

Chicago-Latrobe 50602 37/64 in 118 Degree Extra Long Drill Bit

SKU CH-NRAT-VHCK8

Extra-long 37/64-inch drill bit with 118-degree notched point for deep drilling up to nine inches in general-purpose machining

  • Extra-long reach drills 9 in deep
  • 118-degree notched point starts holes cleanly
  • High-speed steel resists wear in general machining
  • Black oxide finish reduces friction and corrosion
  • 28-degree helix clears chips efficiently

Extra-Long 37/64 in Drill Bit

The Chicago-Latrobe 50602 is a high-speed steel drill bit with an extra-long design for deep-hole drilling. Its 118-degree notched point starts cleanly in general-purpose materials. Black oxide finish adds wear resistance during extended use. This fractional-inch bit suits maintenance and fabrication tasks needing reach beyond standard lengths.

Fits Standard Chucks for Deep Reach

The bit installs in any drill chuck that accepts a 37/64 inch shank, requiring no special adapters. Its 9 inch maximum drilling depth clears thick workpieces or stacked plates in a single pass. The 4xD proportion balances rigidity with the extra length needed for through-holes. Users gain depth without changing tooling or adding extensions.

Black Oxide Finish Reduces Friction

The surface treatment lowers cutting friction and helps eject chips from deep flutes. No separate coating or lubricant is bundled with the bit. The notched point geometry is integral, not an accessory, so there are no extra parts to install or lose. Performance gains come from the bit itself, not from add-on items.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $50.99
Cheaper than about 61% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameCHICAGO-LATROBE

Questions about this item

How deep can the 37/64 in bit drill before the flutes run out?

The flute length allows a maximum drilling depth of 9 in, which is the practical limit before chip evacuation becomes difficult.

Does the black-oxide high-speed steel stay cool during continuous drilling?

Black oxide helps reduce friction, but sustained high-speed use will still generate heat; use cutting fluid and allow cooling pauses.

What shank style does the 50602 bit need to fit my drill?

The bit uses a standard fractional-inch straight shank, so it fits any three-jaw chuck that accepts 37/64 in diameter.

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