Wheeler Gunsmithing Screwdriver Upgrade Kit

• Upgrade set that extends a Wheeler 72-piece or 43-piece screwdriver kit to 89-piece deluxe-set coverage
• Adds 15 specialty bits plus a shaft extension and a square-to-hex adapter
• Specialty bits cover scope ring clamps, windage screws, sight adjustments and pin punches for popular actions
• Hollow-ground flat bits reduce the risk of cam-out and screw-slot damage
• Made from durable S2 tool steel
• Bits hardened to 56-58 Rockwell C for long service life
• Compact, case-friendly format for the gunsmithing bench

This upgrade kit takes a Wheeler 72-piece or 43-piece gunsmithing screwdriver set up to the same specialist coverage as Wheeler's 89-piece deluxe set. It adds 15 specialty bits together with a shaft extension and a square-to-hex adapter, giving access to fittings that standard sets miss: scope ring clamp screws, windage adjustment screws, sight adjustment screws and pin punches sized for popular actions. The bits are hollow-ground flat blades made from durable S2 tool steel and hardened to 56-58 Rockwell C, so they seat properly in the screw slot and resist cam-out, protecting both the screw and the surrounding finish. For anyone already running a Wheeler screwdriver set, it's a straightforward way to extend the kit's reach across scope mounting, sight work and stock hardware without buying a whole new set.

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