Alpha HSS Tap UNC Taper 1/4x20 UNCHT141 4x20 TAPER taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes. Alpha Taper taps can be identified by the single ring on the shaft near the driving square. Diameter: 1 4mm Pitch: 20mm Overall length: 50mm Shaft Diameter: 6mm Drive Square: 4. 9mm Tapping Drill Size: 5. 20mm Weight (gr) 15. 00

high tensile steel & cast iron

Countersink 5 Flute 8mm

Weight (gr)    75

Set Range (mm): 0-100mm

Longest side (mm)    230

and damage from turbulence

threads and joints with greater efficiency

1 x Trade Map Gas Cylinder

2 x 100mm - Hex 13mm Shaft

It contains extra-fine abrasives which clean deep into pores

the load can be steered

Loosening rusted nuts/bolts/screws