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Silver cylindrical twist drill bit with three flat shank sections and split point tip

Drill America

Drill America 51/64in HSS 1/2in Shank KFD Drill Bit with 3-Flat Shank

SKU CH-WZBG-JE319

A 51/64 inch high-speed steel drill bit with a 1/2 inch reduced shank, 3-flat grip, split point and 3 inch flute length

  • Product typeDrill Accessories
  • 51/64 inch high-speed steel cuts tough materials
  • 1/2 inch reduced shank fits standard chucks
  • 3-flat shank prevents slipping under heavy torque
  • Split-point tip starts holes without wandering

Drill bit for heavy-duty metalwork

This 51/64-inch high-speed steel drill bit is built for demanding metal-drilling tasks. The Killer Force design and split-point tip reduce walking and deliver fast, accurate starts in tough materials. Its 1/2-inch reduced shank allows use with standard 1/2-inch chucks despite the large cutting diameter. The bit suits professional workshops and serious DIY projects requiring large-hole capacity.

Three-flat shank prevents slippage

The 3-flat shank locks securely in three-jaw chucks, eliminating spin-out under high torque. A flute length of 3 inches and an overall length of 6 inches provide deep drilling reach and effective chip clearance. The heavy-duty construction resists wear during extended use in steel and alloy. Buyers needing smaller diameters or longer reach for deep-hole drilling should consider other options.

How it compares

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

Price $12.99
Cheaper than about 82% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

What shank size does this 51/64 inch drill bit use?

The bit uses a 1/2 inch shank with three flats that lock into a standard drill chuck and reduce slipping under heavy torque.

How long are the flute and overall length of this 51/64 inch bit?

The flute length is 3 inches and the overall length is 6 inches, giving enough reach for deep holes while keeping the bit rigid.

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