Sutton D514 16mm 4 Flute Auger Bit - 165 mm - 1/4 in Hex Shank

The Sutton D514 is a 4 flute auger bit in tungsten chrome alloy (TCA) with a hex shank, designed for machine and hand drilling into hard and soft wood. It comes in 7 sizes from 10 to 32 mm, all 165 mm overall length, with flute lengths of 50 to 60 mm. A 3 piece set (16, 19 and 25 mm) and a 5 piece set (16, 19, 22, 25 and 32 mm) are also available.

The four cutting edges are designed to cut up to 5 times faster than standard spade bits. The coarse screw point draws the bit into the work piece, providing fast drilling in hard and soft woods, and the hex shank gives a positive grip that prevents slippage in the chuck. Applications for the range include DIY, trade, electrical, plumbing, carpentry, woodworking and roofing.

Where this product is used

• Machine and hand drilling into hard and soft wood.
• Timber boring where a four edge bit, designed to cut faster than a standard spade bit, is wanted.
• DIY, trade, electrical, plumbing, carpentry, woodworking and roofing work.

Design features

• Four cutting edges: designed to cut up to 5 times faster than standard spade bits.
• Coarse screw point: draws the bit into the work piece, providing fast drilling in hard and soft woods.
• Hex shank: positive grip, preventing slippage in the chuck.
• Made from tungsten chrome alloy (TCA).

Sizes and lengths

Diameters and item numbers are shown below. All bits are 165 mm overall length. Lengths are in millimetres.

Using the auger bit

• Match the shank (1/4 in hex or 7/16 in hex, see the size table) to the chuck or driver you are using.
• Start at a low speed so the screw point can engage and draw the bit into the timber, then keep a steady pressure and let the bit feed itself.
• In deep holes, withdraw the bit from time to time to clear the chips from the flutes.
• Back the timber with a scrap piece, or ease off as the bit breaks through, to reduce break-out on the exit side.

Key specifications

Related products

Sets of the same bit: D514 3 piece set and D514 5 piece set. Other Sutton wood boring bits: D510 Short Series auger bit, D518 landscape auger bit and D501 SupaBore spade bit. Browse all auger drill bits. Need help choosing? Our guide to choosing the right drill bit and drill bit selection guide cover drill types and materials.