M35 Cobalt Drill Bit Set - HSS-Co Twist Bits for Stainless Steel, Wood, Metal with Metal Case - Drillpro Jobber Length

Product Details

Product Name: Drillpro M35 Cobalt Twist Drill Bits Set

Brand: Drillpro

Material: HSS-Co M35 Cobalt

Case Type: Random

Measurement System: Metric

Shank Type: Straight Shank

Available Sizes

• 13PCS: 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0, 6.5 mm
• 19PCS: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 mm
• 25PCS: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0 mm

Quantity: Available in sets of 13/19/25 pieces with a metal case

Suggested RPM for Drill Sizes (in mm)

Diameter (mm)	Total Length (mm)	Working Length (mm)	Suggested RPM
1.0	34	12	3000
1.5	39	17	2400
2.0	48	22	1800
2.5	55	30	1600
3.0	62	33	1400
3.5	69	38	1200
4.0	74	44	1000
4.5	79	48	900
5.0	86	52	800
6.0	93	58	700
6.5	100	64	650
7.0	109	70	600
8.0	116	75	500
9.0	125	83	400
10.0	133	90	350

Note: Cobalt drill bits require a slower RPM when drilling metals. The suggested RPM is for reference. Start from a lower RPM and gradually increase. Once the bit penetrates the workpiece, stop adjusting.

Features

• M35 cobalt with 5% cobalt for higher hardness and heat resistance. Rockwell hardness up to 67. Long-lasting, up to 12 times compared to average HSS bits.
• Self-centering with a 135° rapid cutting point for easy penetration with less pressure. Straight handle ensures firm and precise fit.
• Efficient drilling with minimal walking, removing chips faster.
• Resharpenable solid cobalt steel drill body offers the lowest cost per hole.
• Split point allows drilling directly to the required size without pre-drilling.
• Fully ground heavy-duty body construction for minimal burr and accurate diameter.
• Ideal for non-heat treated metals with hardness less than HRC38, like stainless steel, copper, cast iron, and aluminum alloy. Not suitable for hardened/high carbon steel. Adjust drilling speed if penetration fails.

Package Includes

• 13 / 19 / 25 PCS Drillpro M35 Cobalt Drill Bit Set
• 1 Metal Case