Pre-drilling and Countersinking Tool Smartbit Save your time when
screwing your deck

You want to use screws to fix your deck boards? Cobra® Smart bit tool is what you need!

Cobra® Smart Bit® tool: features

Cobra® smart bit tool e-drilling and Countersinking Tool is designed for decking and general woodworking

Discover our innovative tool, specially designed for an easy decking installation.

The tool features a pre-set countersink, a free spinning stop collar to protect the work surface, and replaceable owerbolic® fluted drill bits that cut through decking more than twice as fast as standard wood bits.

The Powerbolic bit has specially designed fluting that cuts through decking more than twice as fast as standard wood bits.

The stop collar spins free of the drill bit, preventing marring or burnishing of the deck surface. When the stop collar stops spinning, the hole is complete.

Cobra® Smart Bit® video


Cobra® Smart Bit® is available in 3 sizes (for 4,5mm, 5mm ou 6mm bits diameter)

  Cobra Smartbit #8 Cobra Smartbit #10 Cobra Smartbit #12
Screw diameter 4,5 mm 5,0 mm 6,0 mm
∅A (bit diameter) 3,2 mm 3,6 mm 4,0 mm
∅B (head screw diameter) 6,6 mm 9,2 mm 11 mm
C (drilling depth) 30 mm 30 mm 40 mm
α (Countersink angle) 60° 90° 82°

Cobra® Smart Bit®, a simple and solid tool to save decking installation time

Screw your decking boards easily !

This drilling-countersink tool is unique in the market. It drills and countersinks your decking boards efficiently.
Light by strong, drilling-countersink Cobra® Smart bit® allows drilling into hardwood easily, in few seconds, whatever is the wood density.

Be sure that labor time will be reduced significantly, insuring a perfect finish. Screws heads will be at the same level as the decking surface, very esthetic and secure when walking bare foot.

Cobra® Smart Bit® drill bits are made in treated Cobalt. Very solid and resistant, they cut through decking more than twice as fast as standard wood bits.

Cobra® Smart Bit® features

  • HSS Powerbolic® High-Speed Drill Bit
  • Anti-Clog Debris Cavity
  • Free-Spinning Stop Collar with O-ring
  • 3 replaceable drilling bits
  • Drilling depth : see sizes table
  • Countersink angle : see sizes table

Your decking installation has never been so easy!

01 : Free-Spinning Stop Collar with O-ring

The Cobra® Smart-Bit® stop collar spins free of the drill bit, preventing marring or burnishing of the deck surface. When the stop collar stops spinning, the hole is complete.

02 : Anti-Clog Debris Cavity

The Cobra® Smart-Bit® debris cavity gathers waste material, keeping it clear of the countersink, unlike conventional flush mounted countersinks. The waste simply falls out onto the deck surface after each hole is completed.

03 : Powerbolic® High-Speed Drill Bit

The Powerbolic bit has specially designed fluting that cuts through decking more than twice as fast as standard wood bits.

04 : Pre-set Countersink

The Cobra® Smart-Bit® matches the head diameter, head angle and countersink depth of regular 5x50mm, 5x60mm and 6x70mm regular stainless screws

05 : Replaceable Bit

Smart-Bit tools come with two extra Replacement Bits and a hex wrench for use with the set screw that holds the drill bits in place.

06 : Pre-set Shaft Length