Somta Series 1NA – 7.94 mm (No. 4) HSS Centre Drill Somta Series 545 – No. 12 UNC HSS Gun Nose Tap (Standard) Pilot Pin Size: 06

Pilot Pin Size: 06

Construction: Precision-ground hardened steel for rigidity and stability

Simple installation and replacement

Durable Stainless Steel: Made from high-grade 304 stainless steel

Somta Series 1NA – 7.94 mm (No. 4) HSS Centre Drill Somta Series 545 – No. 12 UNC HSS Gun Nose Tap (Standard) Pilot Pin Size: 06Somta 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