TREND 3/16 drill diameter x 3/8 counterbore | CB38-316TC

Trend CB38-316TC Counterbore with Pilot Drill (3/8" / 9.5mm counterbore, 3/16" / 4.76mm drill)

Trend CB38-316TC is an adjustable counterbore with pilot drill designed for recessing screw and bolt heads, helping you achieve a clean, flush finish in timber-based materials. With a 3/8" (9.5mm) counterbore and 3/16" (4.76mm) pilot drill, it’s a practical choice for workshop and site joinery where neat fixing details matter.

This Trend counterbore set-up is supplied with a slow spiral HSS drill and includes an adjustment key, making it straightforward to set and use for repeatable results.

Key Features

• Recessing cutter for neat fixings: Creates a counterbored seat so screw and bolt heads can sit below the surface for a tidy finish.
• Supplied pilot drill: Includes an HSS slow spiral drill bit to form the pilot hole while counterboring.
• Fully adjustable design: Allows set-up adjustment to suit the job for consistent, repeatable results.
• Hex key included: Supplied with a hex key for adjustment and set-up.
• Material suitability guidance: Intended for plywood, particle board and plastics; avoids use on metals.

Specifications at a glance

Suitable applications

• Recessing screw and bolt heads in plywood and particle board for a clean, flush fit.
• Creating counterbored fixings in plastics where a neat recessed head is required.
• Joinery and woodworking tasks where consistent pilot holes and recesses improve assembly quality.