5/16" x 18 UNC Left Hand HSS Ground Thread Tap
Specification Product: 5/16x18 UNC High Speed Steel straight flute tap Size: 5/16-18 UNC Straight flute taps lefthand Manufactured to: 5/16" UNC Unified National Coarse (ISO529) Left Hand Options: Bottom, Second & Taper lead taps see options box Part Number ES-3495Visit the JLS Supplies Ltd website for more information on 5/16" x 18 UNC Left Hand HSS Ground Thread Tap