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Precision Twist Drill R10CO1/4 5998143 1/4" (0.25") HSS-E Cobalt heavy duty jobber drill with bronze finish and 135° point. NAS907 standard, 2-3/4" flute length, 4" overall length, right-hand cut, cylindrical shank. For aerospace and demanding applications in steel, stainless steel, cast iron, and high-temperature alloys.

Name: Precision Twist Drill R10CO1/4 5998143 1/4" (0.25") HSS-E Cobalt heavy duty jobber drill with bronze finish and 135° point. NAS907 standard, 2-3/4" fl
Brand: Precision Twist Drill
Price: 7.05 USD
Availability: InStock
Rating: 5.0 (1 reviews)

MODEL 5998143

BRAND

Precision Twist Drill

SKU

6087562

WEIGHT

0.042 lb

UOM

each

This product has a minimum order quantity of (12 minimum) This is the minimum order quantity available when purchasing this product.

$7.05 Each

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Returnable: Yes

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ApplicationAngleIcon_DICT_SEL

Drill point 135°

Basic Standard

NAS907

Coating

Bronze

Connection (shank) description

Cylindrical shank

Cutting diameter - fractional inch (DC)

1/4"

Cutting diameter - inch (DC)

0.25

Cutting diameter - millimeter (DC)

6.35

Drill Length

Jobber

Hand (Cutting direction)

Right

Length chip flute - fractional inch (LCF)

2.3/4

Length chip flute - inch (LCF)

2.75

Material

HSS-E

Overall length - fractional inch (OAL)

Overall length - millimeter (OAL)

101.6

Point Angle (SIG)

135

Spiral form

Standard Spiral

Surface treatement

Steam Tempered

Usable length (ULDR)

Manufactured from High Speed cobalt (HSCo), R10CO NAS907 type J jobber drills are available in sizes from 1/64 inch to 11/16 inch and can be used for drilling hard materials including tool steel.

The 135 degree split point is an aid to self-centering and reduces the amount of force needed to drill the hole, whilst the bronze oxide finish prevents workpiece material from sticking to the surfaces of the drill so you get clean, accurate holes.

R10CO jobber drills have a heavy duty design, recommended for use in difficult materials and applications.