Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

State-Of-The-Art Bits For The Gun Shop or Workshop

With Brownells MAGNA-TIP screwdriver, it is now possible for the gunsmith and firearms hobbyist to have a close fit in most any gun screw he will encounter - and darn near everything around the house and garage too.

DESIGN OF BITS
The TRUE hollow-ground bit transmits all the energy of twist (torque) evenly and smoothly, up the shank of the bit. Not only does hollow grinding permit this power transfer, it also gives complete metal-to-metal contact between the tip of the bit and the entire screw slot. Thus, maximum power can be exerted as in a finely tapered gun spring.

So-called "hollow-ground" screwdrivers which have been dubbed off square, result in all torque pressures concentrating at the square edge of the grind along the tip. As every gunsmith knows, such a flaw in a spring results in breakage! Standard, straight-tapered screwdrivers deliver all torque pressures to the fine edge of the screw slot. PLUS, being tapered, the laws of simple physics force the bit OUT of the slot.The complete sets include eleven bits for slotted screws, #1, #2 and #3 Phillips bits, plus ten hex bits for socket head screws.

PERFECT FIT
You can get even more versatility, and an absolutely perfect bit-to-screw-slot fit by buying extra bits and grinding them to an exact fit using the special Shaping Stone shown on this page.

MATERIALS USED
The bits used in the Brownells MAGNA-TIP screwdrivers are manufactured expressly for heavy industry. They are used in high-speed, production, impact-power drivers for setting screws in mass production applications. They HAVE to be built with the right combination of hardness and durability to give maximum strength and wear!


1911, Issue:11, Page:053
1911, Issue:11, Page:055
AR-15, Issue:10, Page:078
AR-15, Issue:10, Page:079
Big Book Catalog, Issue:67, Page:078
Big Book Catalog, Issue:67, Page:144
Big Book Catalog, Issue:67, Page:145
Big Book Catalog, Issue:67, Page:454
Big Book Catalog, Issue:67, Page:455
Big Book Catalog, Issue:67, Page:458
Big Book Catalog, Issue:67, Page:485
Big Book Catalog, Issue:67, Page:497
New Product Supplement, Issue:566, P
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#445-00 BIT
080-445-002WB
Bit #445-00, SD=.138, BT=.028
080445002Bit #445-00, SD=.138, BT=.028

Mfr Part: 44500

$2.99

In Stock

Bit Number: 445-00

Blade Diameter: .138

Blade Thickness: .028

Style: Hollow Ground

#445-0 BIT
080-445-032WB
Bit #445-0, SD=.154, BT=.032
080445032Bit #445-0, SD=.154, BT=.032

Mfr Part: 4450

$2.99

In Stock

Bit Number: 445-0

Blade Diameter: .154

Blade Thickness: .032

Style: Hollow Ground

#445-10 BIT
080-445-103WB
Bit #445-10, SD=.185, BT=.034
080445103Bit #445-10, SD=.185, BT=.034

Mfr Part: 44510

$3.99

In Stock

Bit Number: 445-10

Blade Diameter: .185

Blade Thickness: .034

Style: Hollow Ground

#445-20 BIT
080-445-203WB
Bit #445-20, SD=.216, BT=.036
080445203Bit #445-20, SD=.216, BT=.036

Mfr Part: 44520

$2.99

In Stock

Bit Number: 445-20

Blade Diameter: .216

Blade Thickness: .036

Style: Hollow Ground

#445-30 BIT
080-445-303WB
Bit #445-30, SD=.248, BT=.038
080445303Bit #445-30, SD=.248, BT=.038

Mfr Part: 44530

$2.99

In Stock

Bit Number: 445-30

Blade Diameter: .248

Blade Thickness: .038

Style: Hollow Ground

#445-1 BIT
080-445-135WB
Bit #445-1, SD=.278, BT=.035
080445135Bit #445-1, SD=.278, BT=.035

Mfr Part: 4451

$2.99

In Stock

Bit Number: 445-1

Blade Diameter: .250

Blade Thickness: .035

Style: Hollow Ground

#445-2 BIT
080-445-240WB
Bit #445-2, SD=.278, BT=.040
080445240Bit #445-2, SD=.278, BT=.040

Mfr Part: 4452

$2.99

In Stock

Bit Number: 445-2

Blade Diameter: .250

Blade Thickness: .040

Style: Hollow Ground

#445-3 BIT
080-445-342WB
Bit #445-3, SD=.278, BT=.042
080445342Bit #445-3, SD=.278, BT=.042

Mfr Part: 4453

$2.99

In Stock

Bit Number: 445-3

Blade Diameter: .250

Blade Thickness: .042

Style: Hollow Ground

#445-4 BIT
080-445-446WB
Bit #445-4, SD=.278, BT=.046
080445446Bit #445-4, SD=.278, BT=.046

Mfr Part: 4454

$2.99

In Stock

Bit Number: 445-4

Blade Diameter: .250

Blade Thickness: .046

Style: Hollow Ground

#445-5 BIT
080-445-550WB
Bit #445-5, SD=.312, BT=.050
080445550Bit #445-5, SD=.312, BT=.050

Mfr Part: 4455

$2.99

In Stock

Bit Number: 445-5

Blade Diameter: .312

Blade Thickness: .050

Style: Hollow Ground

#445-6 BIT
080-445-655WB
Bit #445-6, SD=.360, BT=.055
080445655Bit #445-6, SD=.360, BT=.055

$2.99

In Stock

Bit Number: 445-6

Blade Diameter: .360

Blade Thickness: .055

Style: Hollow Ground

#440-0 BIT
080-440-001WB
Bit #440-0, SD=Phillips #0
080440001Bit #440-0, SD=Phillips #0

Mfr Part: D1220XX

$1.47

In Stock

Bit Number: 440-0

Blade Thickness: .142

Style: Phillips

#440-1 BIT
080-440-100WB
Bit #440-1, SD=Phillips #1
080440100Bit #440-1, SD=Phillips #1

Mfr Part: D1221XX

$1.99

In Stock

Bit Number: 440-1

Blade Thickness: .168

Style: Phillips

#440-2 BIT
080-440-200WB
Bit #440-2, SD=Phillips #2
080440200Bit #440-2, SD=Phillips #2

Mfr Part: D1222XX

$1.99

In Stock

Bit Number: 440-2

Blade Thickness: .216

Style: Phillips

#185-00 BIT
080-185-002WB
Bit #185-00, SD=1/16" Allen
080185002Bit #185-00, SD=1/16" Allen

Mfr Part: H5221X

$2.99

In Stock

Bit Number: 185-00

Blade Diameter: .063

Blade Thickness: .063

Style: Allen

#185-0 BIT
080-185-000WB
Bit #185-0, SD=5/64" Allen
080185000Bit #185-0, SD=5/64" Allen

Mfr Part: H5222X

$2.99

In Stock

Bit Number: 185-0

Blade Diameter: 5/64

Blade Thickness: .078

Style: Allen

#185-1 BIT
080-185-100WB
Bit #185-1, SD=3/32" Allen
080185100Bit #185-1, SD=3/32" Allen

Mfr Part: H5223X

$2.99

In Stock

Bit Number: 185-1

Blade Diameter: .094

Blade Thickness: .094

Style: Allen

#185-9 BIT
080-185-900WB
Bit #185-9, SD=7/64" Allen
080185900Bit #185-9, SD=7/64" Allen

Mfr Part: H5224X

$2.99

In Stock

Bit Number: 185-9

Blade Diameter: .109

Blade Thickness: .109

Style: Allen

#185-2 BIT
080-185-200WB
Bit #185-2, SD=1/8" Allen
080185200Bit #185-2, SD=1/8" Allen

Mfr Part: H5225X

$2.99

In Stock

Bit Number: 185-2

Blade Diameter: .125

Blade Thickness: .125

Style: Allen

#185-10 BIT
080-185-010WB
Bit #185-10, SD=9/64" Allen
080185010Bit #185-10, SD=9/64" Allen

Mfr Part: H5226X

$3.50

In Stock

Bit Number: 185-10

Blade Diameter: .141

Blade Thickness: .141

Style: Allen

#185-3 BIT
080-185-300WB
Bit #185-3, SD=5/32" Allen
080185300Bit #185-3, SD=5/32" Allen

Mfr Part: H5227X

$2.19

In Stock

Bit Number: 185-3

Blade Diameter: .156

Blade Thickness: .156

Style: Allen

#185-4 BIT
080-185-400WB
Bit #185-4, SD=3/16" Allen
080185400Bit #185-4, SD=3/16" Allen

$2.99

In Stock

Bit Number: 185-4

Blade Diameter: .188

Blade Thickness: .188

Style: Allen

#185-5 BIT
080-185-500WB
Bit #185-5, SD=7/32" Allen
080185500Bit #185-5, SD=7/32" Allen

Mfr Part: H5229X

$2.99

In Stock

Bit Number: 185-5

Blade Diameter: .219

Blade Thickness: .219

Style: Allen

#185-6 BIT
080-185-600WB
Bit #185-6, SD=1/4" Allen
080185600Bit #185-6, SD=1/4" Allen

Mfr Part: H5220X

$2.99

In Stock

Bit Number: 185-6

Blade Diameter: .250

Blade Thickness: .250

Style: Allen

MAGNA-TIP® BITS