Multi Functions Combination Tap Drill Bit Set, Spiral Groove - Thread Taps - Woodworking Countersink Drill Bit, High Speed Steel 1/4" Hex Shank, for Wood Plastic Aluminum Copper (M3 to M10)

Description

6pcs HSS Titanium Combination Hex Deburr Countersink Tap Drill Bit Set (M3-M10) Features: ☑ Perfect for soft tapping metal, Aluminum, Wood, Plastic, etc. ☑ Multi-use drill tap deburr countersink hex bit kit. ☑ The advantage is opening, tapping, chamfering. ☑ Hole drilling, tapping and deburring/countersinking. ☑ Decrease processing steps and save time, improve working efficiency. ☑ Back tapered beyond tap to prevent thread damage from over-drilling. ☑ Its a spiral groove, within the processing thread, cutting up to exclude, and was curled applied internally threaded through holes.You can also insert the screws in the hole where have been drilled. Specifications: ● Color: Silver ● Type: Tap Drill Bit ● DIY Supplies: Metalworking ● Material: High Speed Steel (HSS) ● Chamfer Angle: 90° ● Shank: 1/4" (6.35mm) hex shank ● Surface treatment:Titanium Coated ● Thread Diameter:M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5 NOTICE: ☞1.Please add some oil before operate the tap, so the operation is smoother, and also to extend the life of the tap. ☞2.Application: High Speed Steel 4241 is suitable for wood, aluminum, iron and other lower hardness material, the material thickness is 3-5mm. Caution if you used it with hard metal! Package Included: ☺ 6pcs Hex Shank Tap Drill Bits