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All Products  ➞ Bordo ➞ Taps & Dies ➞ HSS-Co5 Machine Taps ➞ Multi-size Machine Tap and Drill Sets

14 Piece UNC Spiral Point Tap and Drill Set

Part Number:3132-S2
Brand:Bordo
Barcode:9326518162315
Description:Spiral Point UNC Tap and Drill Set

Components:
Part NumberQuantity
3132-6G1
3132-8G1
3132-10G1
3132-1/41
3132-5/161
3132-3/81
3132-1/21
2007-2.901
2007-3.501
2007-3.901
2007-5.101
2007-6.601
2007-8.001
2007-10.801

About this item:
  • 14 Piece UNC Spiral Point Tap and Drill Set
  • 6G-1/2" HSS-Co5 (Cobalt) UNC Spiral Point (Gun Nose) machine tap set with HSS tapping drills.
  • Cobalt HSS taps are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
  • Gun nose taps have straight flutes supplemented by angular cutting faces at the lead.
  • The design of the cutting portion propels the swarf ahead of the tap leaving the flutes clear for the flow of coolant to the cutting teeth.
  • Primarily designed for use in through holes, these taps can be used in blind holes provided that there is ample clearance beyond the threaded section to accommodate the swarf.
  • The advantages of a gun nose tap are the shearing action of the angular cutting faces, which produces a fine finish on the threads and shallower flutes. This allows a stronger cross section throughout the tap.
  • Unified National Coarse thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada and the UK.
  • The thread profile of UNC is the same as for metric threads and is described in the JIS B0206 standard.
  • The thread is described by its major diameter and the number of threads per inch of length (TPI).
  • This thread series is commonly used in the mass production of bolts, screws and nuts.
  • It is used for threading into lower tensile strength materials (bronze, brass, aluminium and plastics) to obtain the best resistance to stripping of the internal thread.
  • It is also used on quick assembly or disassembly or if corrosion or slight damage is possible.