Screwdriver STANLEY FatMax flat widened 5.5x100 mm model 65-098

The STANLEY FatMax flat widened 5.5x100 mm model 65-098 is a flat (slotted) screwdriver designed for reliable engagement with slotted screw heads. The tool features a widened 5.5 mm blade and a 100 mm shank that together provide stable tip contact and better torque transfer compared with standard narrow blades. The handle and blade geometry are intended for routine carpentry, electrical and maintenance tasks where a flat-head driver is required.

Advantages

The widened 5.5 mm blade profile increases contact area with the screw slot, reducing cam-out and wear on both screw and tool tip. The 100 mm shank length gives sufficient reach for recessed or partially obstructed screws while retaining control. The screwdriver is produced to maintain a precise slotted tip shape for consistent fit, and the FatMax range typically emphasises durable construction and user-focused ergonomics that support repeated use in workshop and on-site environments.

Suitable for

• General carpentry and woodworking tasks requiring slotted screws
• Electrical installations and junction work where flat-head fasteners are used
• Equipment maintenance and repair of machinery with slotted screw heads
• Assembly and disassembly of furniture and fixtures

Key specifications

• Blade type: flat (slotted) widened tip
• Blade width: 5.5 mm
• Shank length: 100 mm
• Tip geometry: precision-formed for accurate slot engagement
• Intended use: manual turning of slotted screws in hand applications

How to use

Select the STANLEY FatMax flat 5.5x100 mm screwdriver for slotted screws that match the blade width and profile. Insert the tip fully into the screw slot, ensuring the widened blade sits flush to maximize contact. Apply steady axial pressure while turning the handle to reduce slipping and maintain grip in the slot. For recessed screws, use the 100 mm shank to reach the fastener; for close-quarter work, position the handle to retain control and prevent over-torquing. Inspect the tip regularly for wear and replace the tool if the tip becomes rounded or damaged to preserve performance and protect screw heads.

Usage recommendations

Use the screwdriver only for manually turning slotted screws. Do not use as a pry bar, chisel, or for striking with a hammer. Keep the tip clean and aligned with the screw slot; worn or damaged tips should be replaced to avoid screw damage. For electrical work, verify insulation requirements and consider appropriate insulated tools when working on live circuits.