Double End Twist Drill Bits

• Customization: Available
• Customized: Non-Customized
• Standard: DIN, JIS
• Model NO.: standard
• Length: Jobber-length
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Size: 2.5mm to 13mm
• Transport Package: Plastic Box
• Specification: 2.5mm to 13mm
• Trademark: stc
• Origin: Jiangsu
• HS Code: 82075090
• Production Capacity: 5000pcs/month

Product Description

High Quality of HSS M2 materail.
This kind of Bit is recommended for use where more precisely sized holes are required
135 degree split point ensures a true start and eliminates bit walking
Inch and MM both available.
Wood, metal and plastic cutting all available.
Tin-coating, black finish available on request.

Nominal diameter Dh8 mm	Overall length L mm	Flute length l mm
2.50	43	9.50
2.60	43	9.50
2.70	46	10.60
3.00	46	10.60
3.10	49	11.20
3.30	49	11.20
3.40	52	12.50
3.70	52	12.50
3.80	55	14.00
4.20	55	14.00
4.30	58	15.50
4.70	58	15.50
4.80	62	17.00
5.30	62	17.00
5.40	66	19.00
6.00	66	19.00
6.10	70	24.00
6.50	70	24.00
6.80	74	24.00
7.50	74	24.00
8.00	79	25.00
8.50	79	25.00
8.60	84	25.00
9.50	84	25.00
10.00	89	25.00
10.50	89	25.00