D: 9/64 inch
D: 3.5 mm
Shank Diameter: 1/4 inch hex
Screw size: No.10 (5.0 mm)
Sprung barrel dia.: 6.7 mm
With its bevelled nose design, the Drill Bit Guide automatically self centres when positioned in a countersink.
Eliminates any problems of off set screws, misalignment of fittings or screwheads sticking up, for professional, consistent flush fitting results every time.
Makes the correct sized pilot hole for any fitting that requires No10 gauge screws.
Direct fit to Trend Snappy Chucks with spring loaded drill bit for fast action in hard and softwoods.