***Allow one week to make up set.***

Goliath Bottom Tap and Drill Set -HSS

• Bottom Tap Set Including Tapping Drills.

Contents

About HSS Straight Flute Short Machine and Hand Taps

• These general-purpose taps are ideal for creating new threads in a wide variety of materials.
• Goliath HSS taps provide a high hardness to toughness ratio, compressive and tensile strength, good abrasion resistance, and resistance to micro-chipping, ensuring a long tool life.

About Metric Coarse

• The angle of the thread is 60 degrees.
• The crest is flat and the thread has clearance at the root allowing the external thread and internal thread to engage well.
• A larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
• The major diameter of external thread and pitch is specified by a simple numerical value (most commonly measured in millimeters).

About Bottoming Taps

• Bottoming taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.
• Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
• Manufactured from HSS this general-purpose tap is designed for use in medium tensile materials and is for hand or general machine use.