For precision grooves 8 to 28 mm. Adjustable by using spacer rings (included). Cutterhead in steel with reversible HW knives. Manual feed
To groove and rebate solid wood and laminates - Two-piece, adjustable with spacer rings - Steel cutter head - MAN / Manual feed
Adjustable rebate cutter head with reversible knives
HW - Ajustable groove cutter - MIST
Freud RP1000: 5-1/2 (Dia.) Performance System® Panel Raising Cutter Head with 1-1/4 bore - Shaper Profile Knives
Omoniya
Stark adjustable grooving cutterhead 28 - 55 mm Stark TH94TM10
Adjustable groove cutter-head with mechanical fixing HW knives – Utensiltecnica
HW - Ajustable groove cutter - MIST
18x18x1.95 Reversible Grooving Turnover Knives HW with 4 Cutting Edges
machinist pocket whetstone