Draper Storm Force® 20V Angle Grinder, 115mm (Sold Bare)

Grind, cut, and prepare surfaces freely and without the restriction of a power cable using the Draper Storm Force® CAG20SF 20V Cordless Angle Grinder — a compact, capable 115mm cordless grinder from the Draper Storm Force® 20V Power Interchange series that delivers the freedom and flexibility of cordless grinding in a lightweight 1.7kg tool. Sold bare — without battery or charger — the CAG20SF is the practical choice for existing Storm Force 20V tool owners looking to add cordless grinding capability to their toolkit without investing in a duplicate power system.

Running at up to 10,000rpm with a 115mm disc diameter, the CAG20SF delivers effective grinding, cutting, and surface preparation performance across a wide range of common applications — from grinding welds, removing rust and scale on steel fabrications, and cutting tile and masonry, through to surface preparation for painting, surface conditioning, and light metalwork. The M14 spindle thread is the industry-standard fitting for 115mm angle grinder accessories, ensuring complete compatibility with the widest range of grinding discs, cutting discs, flap discs, wire cups, and surface conditioning accessories from all leading manufacturers. The standard 22.2mm bore accepts all compatible 115mm discs without the need for adapters.

A spindle lock button holds the spindle stationary during disc changes, allowing the disc to be swapped safely and quickly without tools. The locking flange secures the disc firmly in place during operation. A grinding guard provides essential protection against sparks and disc debris throughout grinding and cutting operations, and the auxiliary side handle can be fitted to either side of the tool body to suit left and right-handed operators and different working positions — providing a secure, balanced two-handed grip during extended grinding sessions. A rear hand grip completes the ergonomic control package, giving a confident primary grip point for precise, controlled grinding across all application types.

As part of the Storm Force® 20V Power Interchange system, the CAG20SF accepts any Storm Force 20V Li-Ion battery. For sustained grinding applications the 4.0Ah B20LISF battery is recommended for maximum runtime. Battery and charger are sold separately. Not compatible with Draper Storm Force® 10.8V batteries.

Key Features

• Part of the Draper Storm Force® 20V Power Interchange series — compatible with all Storm Force 20V batteries
• 115mm disc diameter with M14 spindle thread — industry-standard fitting for maximum accessory compatibility
• 22.2mm bore compatible with all standard 115mm angle grinder discs
• Variable speed up to 10,000rpm for effective grinding, cutting, and surface preparation
• Spindle lock button for fast, safe tool-free disc changes
• Locking flange for secure disc retention during operation
• Grinding guard for essential operator protection during use
• Auxiliary side handle — fittable to either side for left and right-handed use
• Rear hand grip for confident primary control during grinding
• Lightweight at just 1.7kg for comfortable extended and overhead use
• Sold bare — battery and charger available separately
• Not compatible with Draper Storm Force® 10.8V batteries

Specifications

FAQ Section

What batteries are compatible with the CAG20SF?
The CAG20SF is compatible with all Draper Storm Force® 20V Li-Ion batteries within the 20V Power Interchange series, including the B202LISF 2.0Ah and B20LISF 4.0Ah batteries. It is not compatible with Draper Storm Force® 10.8V batteries. For sustained grinding applications the 4.0Ah B20LISF is recommended for maximum runtime between charges.

Why is the CAG20SF sold bare?
The CAG20SF is sold without battery or charger to offer the best value for existing Storm Force 20V tool owners who already have compatible batteries and chargers. Batteries and chargers are available separately within the Storm Force 20V range.

What discs and accessories can I use with the CAG20SF?
The CAG20SF uses 115mm diameter discs with a 22.2mm bore and M14 spindle thread — the industry-standard specification compatible with virtually all 115mm angle grinder accessories from leading abrasives manufacturers, including grinding discs, cutting discs, flap discs, wire cups, and surface conditioning discs.

What applications is the CAG20SF suited to?
The CAG20SF is suited to a broad range of grinding, cutting, and surface preparation tasks — including weld grinding, rust and scale removal, steel and non-ferrous metal cutting, tile and masonry cutting, surface blending, paint and coating removal, and deburring — depending on the disc or accessory fitted.

How does the CAG20SF compare to the corded Draper Expert AG850?
The CAG20SF offers the significant practical advantage of cordless freedom — no cable management, no need for a nearby power source, and unrestricted reach on site and in confined spaces. The corded AG850 delivers sustained mains power at 850W and 11,000rpm from a fixed power source — better suited to sustained heavy grinding where consistent full power is the priority. The CAG20SF at 1.7kg is notably lighter than the AG850 at 1.85kg and is the practical choice where cordless mobility and Storm Force 20V Power Interchange compatibility are priorities.

What does the spindle lock do on the CAG20SF?
The spindle lock button holds the disc spindle stationary when pressed, allowing the disc to be safely removed and replaced without needing a second tool to counter-hold the spindle. This makes disc changes faster and safer — press, swap, release.

Is the CAG20SF suitable for overhead grinding work?
Yes. At just 1.7kg the CAG20SF is lightweight enough for comfortable overhead and awkward-angle grinding work — a practical advantage of cordless freedom combined with a compact, well-balanced tool design.