Somta Series 1NA – 3.18 mm (No. 1) HSS Centre Drill Somta Series 510 – M6.0 x 1 Spiral Flute Metric Tap Overall length is 190 mm

Overall length is 190 mm approximate

Graduation (N): 2

Overall Length: 5-9/16"

660-Piece Wafer Head Tek Screws Assortment Kit

Somta Series 1NA – 3.18 mm (No. 1) HSS Centre Drill Somta Series 510 – M6.0 x 1 Spiral Flute Metric Tap Overall length is 190 mmSomta Series 1NA 3. 18 mm (No. 1) HSS Centre Drill 1NA0001 The SOMTA 1NA0001 is a precision engineered High Speed Steel Centre Drill (No. 1) manufactured to American Standard Form A. Designed for accurate centre hole production prior to turning or grinding, it ensures true running, dimensional accuracy, and excellent surface finish. Its robust HSS construction provides high wear resistance, hardness, and edge stability under continuous use. Compact