M14 Angle Grinder Conversion Head for Up to Four Saw Blades

Cutting a channel for conduit in brick or tile often means changing tools between the grinder and a groover. This conversion head threads onto an M14 spindle, holds up to four blades at once, and comes with screws, washers, gaskets and spring washers for fitting. It suits anyone cutting slots with a grinder they own.

One Head, Four Blades, Fewer Tool Changes

✅ A slot at width in one pass Several blades on one arbor cut a channel to the width you set, rather than two runs with a single disc.

✅ Blades chosen for the job Blades are added or removed on the head, so a narrow groove and a wider chase use the same tool.

✅ M14 spindle thread The body is cut with an M14 thread, so it matches a grinder whose spindle carries the same thread.

✅ Fixings in the box Screws, washers, gaskets and spring washers arrive with the head, so the first fit needs no trip for parts.

✅ Walls, brick and tile The maker gives grooving in walls, brick and tiles as the work this head is meant for.

Fitting is a thread-on job. Spin the head onto the spindle, stack the blades you want on the arbor, then tighten with the washers and the spring washer so the stack sits flat. Blades are not part of the pack, so use the discs you already keep for the material in front of you.

Two questions come up before buying. The first is the spindle thread: M14 is what this head is cut for, and a grinder with another thread needs a different part. The second is blade diameter, which the maker does not state, so check that your discs sit on the arbor and that the stack of four still clears the guard.

Compared with a dedicated wall chaser, this turns a grinder you already own into a grooving tool, which matters on a small job where a second machine is hard to justify. It does not replace the grinder's own guard, and a deep chase in hard brick still takes more than one pass.

What arrives is the head plus its fixings. The grinder, the blades and any spanner are not included, and no blade size or maximum spindle speed is stated, so work within the limits printed on your own discs.

Technical details

• Type: angle grinder conversion head for grooving
• Thread: M14
• Blades held: up to 4 at the same time, not included
• Stated use: grooving walls, brick and tiles
• Body material: aluminium alloy
• Fit: angle grinders with an M14 spindle thread
• Fixings included: screws, washers, gaskets, spring washers
• Package contents: conversion head and fixings; saw blades not included
• Origin: Mainland China

Check your grinder's spindle thread, fit the head, then set the blades for the slot you need.

See more: explore more angle grinder accessories