Somta Series 1NA – 7.94 mm (No. 4) HSS Centre Drill Somta Series 545 – No. 12 UNC HSS Gun Nose Tap (Standard) - Designed for ease of

- Designed for ease of use in both professional and DIY settings

Pilot Pin Size: 06

it provides excellent wear resistance and edge stability during high-speed operations

Construction: Precision-ground hardened steel for rigidity and stability

Somta Series 1NA – 7.94 mm (No. 4) HSS Centre Drill Somta Series 545 – No. 12 UNC HSS Gun Nose Tap (Standard) - Designed for ease ofSomta Series 1NA 7. 94 mm (No. 4) HSS Centre Drill 1NA0004 The SOMTA 1NA0004 is a precision High Speed Steel Centre Drill (No. 4) manufactured to American Standard Form A (60). Designed for accurate pilot and countersink hole production before turning, grinding, or secondary drilling operations, this centre drill provides excellent concentricity, dimensional accuracy, and surface finish. Its robust HSS body delivers outstanding hardness, heat