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CUTQORCutting Tools

Adjustable Depth-Stop Countersink Drill Bits

Hex-shank countersink drill bits with an adjustable depth-stop collar for repeatable screw-hole drilling, flush-head countersinking and concealed screw installation.

Key specifications

Cutter diameter3–20 mm
Cutter thickness0.5–8 mm
Clearance diameter1.5–10 mm
Clearance length4–25 mm
Shank diameter4–20 mm
Overall length50–75 mm
Flutes4

Ranges show listed options. Available dimension combinations vary by cutter diameter; see the size charts below.

Standard model range

Select a model and dimensions

8 options

Inquiry selection: Depth-Stop Countersink Drill 2.8 mm

Description

Depth-Limited Countersink Drills for Consistent Screw Installation

These countersink drill assemblies combine a replaceable center drill, carbide countersink cutting edges and an adjustable stop collar. They support repeatable pilot holes and controlled recess depth for flat-head or concealed screws in wood and panel materials.

Range specifications

Hex shank 1/4 in (6.35 mm)
Center drill options 2.5, 2.8, 3.0, 3.2, 3.5 and 4.0 mm
Depth control Adjustable stop collar with locking screw and service wrench
Typical materials Solid wood, plywood, MDF, particleboard and laminated panels

Typical applications

  • Flat-head screw countersinking
  • Hidden screw installation
  • Pilot-hole drilling with controlled depth
  • Cabinet, furniture and panel assembly

Ordering guidance

Send the required center-drill diameter, countersink diameter, target drilling depth, screw type, workpiece material and quantity. For sets, confirm whether replacement drill cores and adjustment tools are required.

Product Details

CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail
CUTQOR Adjustable Depth-Stop Countersink Drill Bits product detail

Additional information

Center Drill / Set

2.8 mm Countersink Assembly, Five Drill Cores 2.8–4.0 mm, Five-Size Countersink Set, Five Drill Cores 2.5 mm, 3.0 mm Countersink Assembly, Five Drill Cores 3.2 mm, Five Drill Cores 2.8 mm, 3.2 mm Countersink Assembly

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Information to include with your inquiry

  • Router or CNC machine and collet/shank size
  • Workpiece material and expected cutting profile
  • Required dimensions, drawing or reference photo
  • Trial quantity, bulk quantity and destination country

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