Tools / Saws
Bosch GKS 18V-57-2 / 18V-57-2 L Circular Saw User Manual
Quick guide for the Bosch GKS 18V-57-2 and GKS 18V-57-2 L cordless circular saws, covering setup, operation, blade replacement, and safety instructions.
Table of contents
Quick guide from the manual
This document provides essential operating instructions for the Bosch GKS 18V-57-2 and GKS 18V-57-2 L cordless circular saws. Always remove the battery before performing any maintenance, tool changes, or adjustments to prevent accidental starting.
Device description
The circular saw is designed for straight and miter cuts in wood. Key components include the on/off switch, spindle lock button, cutting depth scale, and adjustable base plate.
Assembly and setup
Blade installation/replacement: Place the tool on the motor housing front. Press and hold the spindle lock button (4). Use the hex key (27) to loosen the clamping bolt (26). Retract the pendulum guard (14) and remove the clamping flange (25) and blade (24). Clean all parts before installing a new blade, ensuring the rotation direction matches the arrow on the guard. Tighten the clamping bolt to 6–9 Nm.
Operation
Cutting depth: Loosen the clamping lever (7). Adjust the saw relative to the base plate (15) to the desired depth on the scale, then retighten the lever.
Miter angle: Loosen the clamping lever (9), tilt the saw to the desired angle on the scale (8), and retighten the lever.
Operation: To start, press the lock-off switch (2), then press and hold the on/off switch (1). Release the switch to stop. The saw features an integrated run-out brake and LED worklight.
Maintenance and cleaning
Keep the tool and ventilation slots clean. Ensure the pendulum guard moves freely and closes automatically. Clean dust and chips with a brush. Clean resin or glue residue from the blade immediately after use.
Safety
Always wear personal protective equipment, including eye protection and a dust mask. Keep hands away from the cutting area and the blade. Do not reach under the workpiece. Support large panels to minimize the risk of kickback.
Manufacturer information
Bosch
Practical help
Common problems
Saw blade binds or stalls
Release the trigger immediately and hold the saw motionless in the material until the blade stops. Investigate and fix the cause of binding before restarting.
Battery charge indicator does not light up
The battery may be defective and needs replacement.
Pendulum guard moves sluggishly
Clean the area around the guard with a brush to remove dust and chips.
Before use
- Ensure the battery is fully charged.
- Check that the lower guard closes correctly and moves freely.
- Verify the saw blade is sharp and suitable for the material.
- Ensure all locking levers for depth and bevel are tight.
- Check that the workpiece is securely clamped.
Specs in practice
- No-load speed
- 5000 min-1; the rotational speed of the blade without load.
- Max. cutting depth (0°)
- 57 mm; the maximum thickness of material that can be cut at a right angle.
- Blade diameter
- 165 mm; the required size for replacement blades.
Images and diagrams
- The manual includes diagrams for blade replacement (A), dust extraction connection (B), cutting depth adjustment (C), parallel guide usage (D), auxiliary guide usage (E), and utility hook mounting (F-G).
Model compatibility
- Use only GBA 18V or ProCORE18V batteries (≥ 4.0 Ah).
- Use only chargers compatible with Bosch Li-ion batteries (GAL 18..., GAX 18..., GAL 36...).
- Do not use HSS steel blades.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.