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SKU: 101-091  |  MPN: 32408

Make it Snappy Tools SD-3 Avellanadores de fondo plano

Precio normal $16.90

Tamaño

Avellanadores rápidos para un agujero de un solo paso

Las brocas avellanadoras son ideales para usar tornillos para madera con cabeza cónica. Sin embargo, si usa tirafondos, pernos de fijación, tornillos con arandela, tuercas en T y más, necesita un agujero avellanado con fondo plano para asentar correctamente el tornillo. En ese caso, las brocas avellanadoras Snappy SD-3 son la herramienta perfecta. La broca avellanadora de 3 estrías crea un agujero piloto y avellana un agujero de fondo plano en un solo paso.

Las brocas son de acero de alta velocidad y están recubiertas de nitruro de titanio (TiN) para aumentar la resistencia al desgaste. Cada avellanador tiene un vástago hexagonal Power Bit de 1/4" compatible con el mandril de cambio rápido de Snappy.

Otra gran característica para los carpinteros es el tornillo de fijación de gran tamaño para el avellanado. En lugar de tener que apretar o aflojar el tornillo a tientas, este tornillo de gran tamaño simplifica el ajuste del avellanado. A veces, son los pequeños detalles los que marcan la diferencia.

Los avellanadores se ofrecen en cinco tamaños, ¡o compre el juego de 5 piezas con bolsa de lona y ahorre!

Los tamaños incluyen:

  • 1/8" x 3/8"
  • 3/16" x 1/2"
  • 1/4" x 3/4"
  • 5/16" x 1"
  • 3/8" x 1"

Frequently Asked Questions

What is a flat-bottom counterbore used for?

It creates a flat-bottomed recessed hole so fasteners like lag screws, lag bolts, washer-head screws, and T-nuts seat properly. See our drill bits & drivers.

How is this different from a countersink?

A countersink makes a cone-shaped recess for cone-headed wood screws, while the SD-3 makes a flat-bottomed hole for flat-bottomed fasteners. It also drills the pilot hole in the same step.

What sizes are available?

Five sizes: 1/8" x 3/8", 3/16" x 1/2", 1/4" x 3/4", 5/16" x 1", and 3/8" x 1". You can also buy the 5-Pc. set with a canvas pouch.

What is the drill bit made of?

The drills are high speed steel coated with Titanium Nitride (TiN) to increase wear resistance and extend life.

What shank do these counterbores have?

Each has a 1/4" hex Power Bit shank that works with Snappy's Quick Change chuck.

Does it drill the pilot hole too?

Yes. The 3-flute counterbore creates the pilot hole and the flat-bottomed counterbore in one step.

How do I adjust the counterbore depth?

An oversized set screw makes adjusting the counterbore quick and easy, so you can set the drill depth without fumbling.

Can I buy these as a set?

Yes. They're offered individually in five sizes, or as a 5-Pc. set with a canvas pouch. Browse more drilling & boring tools.

What fasteners need a flat-bottomed hole?

Lag screws, lag bolts, washer-head screws, T-nuts, and similar flat-bottomed hardware seat best in a flat-bottomed counterbore.

Who makes the SD-3 counterbores?

They are made by Make it Snappy Tools. Pair them with our Forstner bits for more boring options.