Proto JK3808RF Slotted Screwdriver 3/8 in Blade Keystone

Product Description

The PROTO JK3808RF is a slotted keystone-tip screwdriver built for professional tradespeople who need a reliable, full-size flat blade driver. The blade measures 3/8 inch wide and 8 inches long, with an overall length of 12-3/4 inches. The round shank provides a solid grip point for additional torque with a wrench when needed. The ergonomic handle, measuring 4-3/4 inches in length, reduces hand fatigue during extended use. Blade thickness is 0.050 inch, which suits standard slotted fasteners found across HVAC, electrical, plumbing, and general mechanical applications.

This screwdriver is suited for residential and commercial service work where a large-format slotted driver is required. The keystone tip profile is commonly used on wider slotted screw heads encountered in electrical panels, terminal blocks, equipment access panels, and mechanical assemblies. HVAC technicians, electricians, and plumbers will find the blade length and tip geometry appropriate for reaching fasteners in tight equipment enclosures or deep panel boxes.

Key Features

• Keystone tip profile fits standard wide slotted fasteners
• 3/8 inch blade width with 0.050 inch blade thickness for positive fastener engagement
• 8 inch blade length for reaching recessed or deep-set fasteners
• Round shank allows use of a wrench for added torque
• Ergonomic handle design reduces hand fatigue during repetitive use
• 12-3/4 inch overall length suits full-size service and installation tasks

Compatibility

Designed as a general-purpose slotted keystone screwdriver compatible with standard wide slotted fasteners used across HVAC, electrical, plumbing, and mechanical trade applications.

Installation Notes

Intended for use by licensed tradespeople and qualified service technicians. Always de-energize electrical equipment and follow applicable NFPA 70 (NEC) lockout/tagout procedures before using this tool on or near live panels or terminals. Inspect the blade tip for wear or deformation before use, as a damaged tip can slip and damage fastener heads or cause injury. Match the blade width and thickness to the fastener slot to ensure full engagement and prevent cam-out.