6pcs HSS 6542 Titanium Coated M3-M10 Combination Drill Tap Bit Set 1/4 Inch Hex Metric Deburr Countersink Bits

Specifications:
Type: Tap Drill Bit Material: High Speed Steel / HSS6542
Shank: 1/4" (6.35mm) hex shank
Surface Treatment: Titanium Coated DIY Supplies: Metalworking Size: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5
Quantity: 6pcsTap Drill Bits

Size	Bit Diameter(mm)	Shank Diameter(mm)	Shank Length(mm)	Blades Length(mm)	Total Length(mm)
M3x0.5	3.0	6.35	41	25	66
M4x0.7	4.1	6.35	36	31	67
M5x0.8	5.0	6.35	36	32	68
M6x1	6.0	6.35	34	34	68
M8x1.25	8.1	6.35	33	38	71
M10x1.5	10.0	6.35	32	40	72

Features:
High hardness, rustproof, solid and durable.
The advantage is opening, tapping, chamfering. Self-centering point, do not need assistant center drilling or center punching. Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc.
Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.

HSS6542 (M2) is of higher hardness and more durable than the HSS4341,

and is suitable for cutting the steel even the 2mm 304 steel.