Product description

1.[HSS 4341 UNC thread tap drill bits set]: Drilling, tapping and deburring/ countersinking in one bit, one-step processing, greatly save processing steps and time costs, improve working efficiency;
2.[Material]: Made of high quality HSS 4341, suitable for tapping on wood, plank, plastic etc. Work vert slowly and carefully with these bits when drilling metal
3.[Application]: Ideal for drilling, tapping, cutting on wood, soft metal, aluminum plate, iron, etc. (Note: it can not work well with stainless steel 304 or high hardness metal. )
4.[Sizes]: 6-32NC (3.5mm), 8-32NC(4.2mm), 10-32NC(5mm), 10-24NC (5mm), 12-24NC(5.7mm), 1/4-20NC(6.35mm)

Specification

Item: HSS tap drill bits set
Material: HSS 4341
Shank type: 1/4 inch hex shank
Quanity: 6pcs
Package Included: 6pcs screw tap drill bits

Notice

It's highly recommended that the combination drill and tap bit is used on a tapping machine. If you apply an electric hand drilling machine to do the tapping job, please pay attention to your operating, because excessive shaking and tilting may affect the result and even break the bit.