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Precision Twist 2ACO Cobalt Steel Jobber Drill Bit, Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle

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Precision Twist 2ACO Cobalt Steel Jobber Drill Bit, Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle

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Product Specifications

Brand Name: Precision
Cutting Angle: 135 Degrees
Cutting Direction: Right Hand
Drill Point: Conventional

Finish Types: Gold Oxide
Flute Type: Spiral
Material Type: Cobalt Steel
Shank Type: Round

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Currently showing 20 of 103 Show All
Size	Mfg Series #	System of Measurement	Flute Length	Overall Length	Pkg Qty	Mfr Part #	ASIN The Amazon Standard Item Number (ASIN) uniquely identifies the item in the AmazonSupply.com (and Amazon) catalog.	Available If an item is currently out of stock, but has an estimated lead time, you can place an order now and we will ship it as soon as it is available. You can also order more than we currently have in stock. Read more about back orders in our help section.	Price
All	All	All		All		All		In Stock Only
Currently showing 20 of 103 Show All
1.00 mm	2ACO	Metric	12 mm	34 mm	12	016410	B002095X7E	In Stock (2)	$31.24
1.05 mm	2ACO	Metric	12 mm	34 mm	12	016355	B00271BQBW	In Stock (2)	$34.69
1.10 mm	2ACO	Metric	14 mm	36 mm	12	016411	B0026HCV0M	In Stock (1)	$32.89
1.15 mm	2ACO	Metric	14 mm	36 mm	12	016356	B002091RSS	In Stock (1)	$34.02
1.30 mm	2ACO	Metric	16 mm	38 mm	12	016413	B00209B3XM	In Stock (1)	$32.52
1.35 mm	2ACO	Metric	18 mm	40 mm	12	016358	B002091RWY	In Stock (1)	$32.86
1.40 mm	2ACO	Metric	18 mm	40 mm	12	016414	B0026H7FXK	In Stock (1)	$32.52
1.45 mm	2ACO	Metric	18 mm	40 mm	12	016359	B0025Q9Z94	In Stock (1)	$33.59
1.50 mm	2ACO	Metric	18 mm	40 mm	12	016415	B0025QI05Y	In Stock (2)	$26.85
1.55 mm	2ACO	Metric	20 mm	43 mm	12	016360	B002093SZ8	In Stock (1)	$32.19
1.60 mm	2ACO	Metric	20 mm	43 mm	12	016416	B0025QE4VS	In Stock (1)	$32.52
1.65 mm	2ACO	Metric	20 mm	43 mm	12	016361	B002097BFQ	In Stock (1)	$32.19
1.70 mm	2ACO	Metric	20 mm	43 mm	12	016417	B00209B3ZA	In Stock (2)	$29.02
1.75 mm	2ACO	Metric	22 mm	46 mm	12	016362	B0026HCUVC	In Stock (1)	$33.59
1.80 mm	2ACO	Metric	22 mm	46 mm	12	016418	B0026HAXL6	In Stock (1)	$31.14
1.85 mm	2ACO	Metric	22 mm	46 mm	12	016363	B002719XGM	In Stock (1)	$32.19
1.90 mm	2ACO	Metric	22 mm	46 mm	12	016419	B0026H9204	In Stock (1)	$32.52
1.95 mm	2ACO	Metric	24 mm	49 mm	12	016364	B0026HCUVM	In Stock (1)	$33.59
2.00 mm	2ACO	Metric	24 mm	49 mm	12	016420	B002091SP0	In Stock (2)	$26.06
2.05 mm	2ACO	Metric	24 mm	49 mm	12	016365	B0026HGNEC	In Stock (1)	$32.16

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Key Features

NAS 907 type B standards, used in the aerospace industry
High-speed steel (HSS) containing cobalt is a good combination of toughness and hardness, for use on drilling through hard substances
Gold oxide retains cutting fluid and prevents chip to tool welding
135-degree split-point angle is self-centering, reduces walking, good for hard material, and reduces pressure on cutting edges
Jobber-length drill bits, most common length drill bit, suitable for a wide range of applications

Product Description

The Precision Twist 2ACO jobber-length drill bit is a 135-degree, split-point, heavy-duty, round shank drill bit made of HSS and cobalt with a gold oxide finish. They meet NAS 907 Type J aircraft industry specifications for heat resistance and use for drilling hard, tough materials. Best performance with drilling into hardened, tempered alloy steel, nodular graphite malleable cast iron, and alloyed titanium and nickel. It is suitable for drilling to a depth up to four times the diameter of the drill. The shank diameter is the same as the drill size.

While the 2ACO series was designed for aircraft industry, they also work well for drilling into a variety of materials. The 135-degree split-point drill geometry ensure an accurate hole by reducing walking when the hole is started. The finish retains lubricants to aid in wear resistance and chip flow.

The 2ACO series has a type N flute form, with a regular helix angle of 21 to 34 degrees. The gold oxide is a low temperature heat treatment which reduces grinding stress within the tool, and has an appealing, easy-to-identify gold color. Gold oxide is commonly used to identify cobalt steel tools. Spiral flutes act as a passageway for chip extraction from the hole and for coolant to enter the hole. Right-hand twist brings chips up and away from the cutting edge.

Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits are commonly used to drill holes with hand-operated drills, standalone drill presses, or lathes. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. These drill bits have a right-hand twist that brings chips up and away from the cutting edge. They are made to DIN 338 and NAS 907 industry standards, which help ensure that drill bits around the world conform to the same specifications.

Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. They have locations around the world, and provide tools adhering to ANSI, NAS, and DIN standards.

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Precision Twist 2ACO Cobalt Steel Jobber Drill Bit, Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle

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