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Silver twist drill bit with three flat shank sections and reduced 1/2 inch shank

Drill America

Drill America 17/32in HSS 1/2in Shank KFD Drill Bit 3-Flat Shank

SKU CH-E6AJ-5RXFF

17/32 inch HSS drill bit with 1/2 inch shank and three-flat grip for heavy-duty drilling

  • Product typeDrill Accessories
  • 17/32 inch drill bit for precise hole sizing
  • High-speed steel construction resists heat during heavy use
  • Killer Force split point starts on contact without walking
  • Three-flat shank prevents slipping in 1/2 inch chucks

Drill Bit for Heavy-Duty Metalwork

This Drill America 17/32in HSS drill bit features a 1/2in shank with three flats for a secure chuck grip. The KFD Killer Force design incorporates a heavy-duty split point to reduce walking and improve penetration in tough materials. It suits professionals and serious DIYers drilling precise holes in steel and alloys.

Reduced Shank Fits Standard 1/2in Chucks

The 1/2in reduced shank allows use in drills that cannot accept larger diameters, freeing up the need for a specialist large-capacity machine. Its 3-flat profile prevents slippage under high torque, while the split point starts cleanly without a centre punch. Builders needing deeper reach or smaller step sizes will need different tooling.

How it compares

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

Price $8.99
Cheaper than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

At what diameter does the 17/32 inch reduced shank become the limiting factor under sustained drilling?

The 17/32 inch cutting diameter with a 1/2 inch reduced shank means torque transfers through a smaller cross-section, making shank strength the first limit during heavy, continuous feed pressure.

How does the high-speed steel body and three-flat shank affect heat buildup and grip during all-day drilling?

High-speed steel retains hardness at elevated temperatures while the three-flat shank prevents chuck slippage, keeping the bit stable and reducing heat-related wear during extended use.

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