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Silver twist drill bit with three-flat shank and bronze tip

Walter Surface Technologies

Walter Surface Technologies 01M555 Prentice Drill Bit 55/64in 135deg 3-1/8in Flute 6in Overall

SKU CH-DX0X-MXWQZ

Heavy-duty cobalt drill bit with 135-degree point, three-flat shank and bronze SST finish drills mild steel, non-ferrous and stainless steel

  • Product typeElectric Drills
  • Drills 55/64in holes in steel with 135deg point
  • Three shank flats stop chuck slippage during heavy drilling
  • Cobalt blend tips stay sharp for more holes between sharpenings
  • Bronze SST finish cuts friction for faster drilling speed
  • 6in overall length reaches deep workpieces in drill presses

Walter SST+ ½” Prentice Drill Bit

This Walter SST+ ½” Prentice drill bit is a heavy-duty large-diameter bit built for portable drills, drill presses and magnetic base drills with a ½” chuck. The cobalt blend and extra-hard tip material extend the interval between re-sharpenings.

Suited for steel and non-ferrous metal drilling

It handles mild steel, non-ferrous metal and stainless steel. The 135-degree point geometry removes the need for a pilot hole and three flats on the shank stop slippage in the chuck. Buyers who need smaller diameters or bits for wood and masonry should choose a different style.

55/64 inch diameter with 3-1/8 inch flute

The cutting diameter is 55/64 inch, the flute length is 3-1/8 inch and the overall length is 6 inch. The 135-degree point angle and bronze SST treatment support faster drilling in the listed metals.

How it compares

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

Price $67.99
Cheaper than about 55% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameWALTER SURFACE TECHNOLOGIES
Product typeElectric Drills

Questions about this item

What comes in the box with the 01M555 Prentice drill bit?

The package contains the single 55/64 inch drill bit with 135 degree point, 3-1/8 inch flute and 6 inch overall length.

Which chuck size matches this 01M555 bit?

The 1/2 inch shank with three flats fits any drill or magnetic-base unit that accepts a 1/2 inch chuck.

How deep can I drill in stainless steel with the 55/64 inch diameter?

The 3-1/8 inch flute length sets the maximum clean hole depth in mild steel, non-ferrous metal and stainless steel.

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