Ralli Wolf RF9-100 Angle Grinder – 100 mm, 900 W, 11000 rpm, Back Switch

The Ralli Wolf RF9-100 puts a 900 W motor in a 100 mm grinder and moves the switch to the back of the body, where the hand that holds the tool works it. That suits long runs of weld dressing and edge finishing in sheet-metal fabrication — the job Ralli Wolf designs it for. It runs 100 × 16 × 5.5 mm discs at 11000 rpm on an M10 spindle, is double insulated and weighs 1.7 kg.

At a glance

• Disc: 100 mm
• Power: 900 W
• Speed: 11000 rpm
• Spindle: M10
• Switch: back
• Weight: 1.7 kg

Why choose the RF9-100

• 900 W motor in a 100 mm grinder
• Back switch — the hand that holds the body works the switch
• Suited to light weld dressing in sheet-metal fabrication
• Ralli Wolf — an Indian power-tool maker with more than 60 years in the trade. Ralli Wolf Industries Ltd. began in technical collaboration with Wolf of the UK, makes its tools at an ISO 9001:2015 certified plant in MIDC Ahmednagar, Maharashtra, and backs them with more than 30 service locations across India.

Specifications

• Model: RF9-100
• Product: Ralli Wolf Angle Grinder
• Rated power: 900 W
• Rated voltage: 230 V, 50 Hz
• Disc size: Ø100 × Ø16 bore × 5.5 mm
• No-load speed: 11000 rpm
• Spindle thread: M10
• Switch: back (paddle) switch
• Full-load current: 3.6 A
• Insulation: double insulated
• Weight: 1.7 kg
• Brand: Ralli Wolf (Ralli Wolf Industries Ltd., India)

Using an angle grinder safely and well

Always fit the wheel guard and the side handle, and use only discs whose marked maximum speed is at least the grinder's no-load speed. Match the disc size and bore to the spindle: 100 mm grinders take 16 mm-bore discs on an M10 spindle, 125 mm and larger grinders take 22.2 mm-bore discs on an M14 spindle. Let the tool reach full speed before it touches the work, keep the disc at a shallow angle for grinding, and wear eye protection, gloves and ear defenders.

Where it is used

• Cutting steel rods, angles, pipes and sheet
• Weld dressing and edge smoothing in fabrication
• Rust and paint removal with wire brushes
• Cutting tile, marble and stone with diamond blades
• Polishing and sanding with flap discs and pads

Which Ralli Wolf angle grinder is right for you?

• RG6-100 — 100 mm, 750 W, 11000 rpm, Side Switch
• 25100 — 100 mm, 800 W, 11000 rpm, Side Switch
• RF9-100 (this page) — 100 mm, 900 W, 11000 rpm, Back Switch
• RG9-100 — 100 mm, 900 W, 11000 rpm, Back Switch
• AG100 — 100 mm, 1100 W, 11000 rpm, 230 V / 115 V
• 45100 — 100 mm, 850 W, 11000 rpm, Anti-Vibration Handle
• 45125H — 125 mm, 850 W, 11000 rpm, Palm Grip
• 35135 — 125 mm, 1400 W, 9000 rpm, Heavy Duty
• AG125 — 125 mm (5"), 1100 W, 11000 rpm
• 60145 — 125 mm, 1400 W, 3000–11000 rpm, Soft Start
• AG180 — 180 mm (7"), 2400 W, 8500 rpm
• RG22-180 — 180 mm (7"), 2200 W, 8500 rpm, Trigger Switch
• RG26-180 — 180 mm (7"), 2600 W, 8400 rpm, Heavy Duty
• RG7-30 — 180 mm (7"), 3000 W, 8500 rpm, Soft Start
• AG230 — 230 mm (9"), 2400 W, 6800 rpm
• RG9-30 — 230 mm (9"), 3000 W, 6500 rpm, Soft Start
• See all Ralli Wolf angle grinders

Related products

• Ralli Wolf die, straight and bench grinders
• Ralli Wolf marble cutters
• Ralli Wolf chop saws

Frequently asked questions

Which should I choose — the RF9-100 or the RG9-100?

Both are 900 W, 100 mm back-switch grinders at 11000 rpm and 1.7 kg. The Ralli Wolf RG9-100 adds a dust-protection sleeve for the armature and a slim palm-grip body; the RF9-100 is aimed at light weld dressing in sheet-metal fabrication.

Which discs fit the RF9-100?

Ø100 × Ø16 bore × 5.5 mm discs on its M10 spindle. Use only discs marked for at least 11000 rpm — the grinder's no-load speed — and always fit the wheel guard.

Can the RF9-100 cut tiles and stone?

Yes, with a diamond blade of the right size and bore. For long, straight cuts in tile and stone, a marble cutter such as the Ralli Wolf RW4-SB is easier to guide.

What is the price of the Ralli Wolf RF9-100, and where can I buy it?

Prices depend on quantity and current Ralli Wolf pricing, so they are quoted on request. Jai Enterprises supplies Ralli Wolf tools from Bhilai and Raipur, Chhattisgarh, to sites across India — call +91 9340081159 or send an enquiry from this page with the quantity and delivery location.

How to order

Supplied by Jai Enterprises, despatched from Bhilai and Raipur, Chhattisgarh, to sites across India. To request a price, call +91 9340081159 or send an enquiry from this page with your quantity and site details, and we will confirm availability, lead time and the right model for the job.