Otto Frei.
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Drills & Drill Accessories

Tool steel refers to a variety of carbon and alloy steels that are particularly well-suited to be made into tools. Their suitability comes from their distinctive toughness, resistance to abrasion, their ability to hold a cutting edge, and/or their resistance to deformation at elevated temperatures (red-hardness). High Speed Steel (often abbreviated HSS) is a material usually used in the manufacture of machine tool bits and other cutters. It is often used in power saw blades and drill bits. It is superior to the older high carbon steel tools used extensively through the 1940s in that it can withstand higher temperatures without losing its temper (hardness). This property allows HSS to cut faster than high carbon steel, hence the name high speed steel. At room temperature HSS and high carbon steel have an equivalent hardness; only at elevated temperatures does HSS become advantageous.
 

SPHINX SPIREC High Speed Micro Steel Drills Made In Switzerland

Special sale on SPHINX SPIREC High Speed Micro Drills as well as other brands Swiss & English High Speed Twist Drills.
 

SPHINX SPIREC High Speed Steel Micro Center Drills Made In Switzerland

 

SPHINX SPIREC High Speed Steel Flat Micro Drills Made In Switzerland

Special sale on SPHINX SPIREC High Speed Steel Flat Micro Pivot Drills and Mascot HSS Flat Pivot Drills.

Flat Pivot Drills are made with a rake angle of zero degrees. They made be used wherever drilling is done without a drill bushing. In many cases these drill can be used without first making a center.

   

NEW VALIDUS KEYLESS JACOBS DRILL CHUCK 1/32"-1/2"

New old stock, found in our forgotten lathe and milling inventory. Made in Italy, by Validus size 0 - 6 MM, Female Thread 3/8 "

VALIDUS-0-06-KEYLESS
$79.00

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Threaded 3/8" Milling Arbor For Jacobs Chuck

The AGP Taper Milling Arbor, made in Italy for Drill Chuck, entirely of hardened and ground steel.

Fits the VALIDUS-0-06-KEYLESS Jacobs Chuck

ARBOR-MILL-THREAD3-8
$19.95

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NEW VALIDUS KEYLESS JACOBS DRILL CHUCK 1/32"-1/2"

New old stock, found in our forgotten lathe and milling inventory. Made in Italy, by Validus size 0 - 13 MM. Fits a CM2 tampered mounting shank.

VALIDUS-0-13-KEYLESS
$96.00

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Morse Taper Milling Arbor For Drill Chucks, Morse-Jacobs Size CM2

The AGP Taper Milling Arbor, made in Italy for Drill Chuck, entirely of hardened and ground steel. Size CM2 is made to fit the Validus Jacobs chuck 0-13 mm. Will also fit other Jacob chucks requiring a CM2 size taper arbor. Length End to End 4.26"

ARBOR-APL-CM2
$19.95

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Diamond Core Drill 1 Inch Diameter

Some Neycraft Core Drilling Instructions:
A 1 inch diamond core drilling agate should be run at approximately 100 R.P.M. To start a hole, begin by kissing the stone with the drill until a clouding appears in the coolant. When this occurs, increase the pressure and continue drilling, Throughout the drilling cycle, oscillate the drill up and down rapidly. To minimize edge chipping when through hole drilling, back the stone with a glass plate.

DRILL-DIAMOND-CORE1
$86.00

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Set of 3 Brubaker Plug Hand Screw Tap GH3, 1/4-28 NF, HSS

New old stock, Brubaker Screw Tap

BRUBAKER-1/4-28-NF
$18.95

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Set of 3 Brubaker Plug Hand Screw Tap GH3, 12-24 NF, HSS

New old stock, Brubaker Screw Tap

BRUBAKER-12-24-NC
$18.95

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Set of 3 Brubaker Plug Hand Screw Tap GH3, 12-28 NF, HSS

New old stock, Brubaker Screw Tap

BRUBAKER-12-28-NF
$18.95

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Set of 3 Brubaker Plug Hand Screw Tap GH3, 5/16"-24 NF, HSS

New old stock, Brubaker Screw Tap

BRUBAKER-5/16-24-NF
$18.95

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Bergeon Assortment of 12 End-Mill, in Hard Metal, with Interchangeable Pivots

All the pivots of the assortment are interchangeable between themselves for end-mill number 1 to 12 plus 16 and number 13 to 15. Use with broach 30007-C that is included. Conical shank 2%. Delivered in wooden case.
Special order item, please allow 4-6 weeks for delivery. Credit Card are not billed for special order items until they are shipped.

BERG-30007-MD
$2,265.00

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Taper Milling Arbor For Drill Chucks, Jacobs Size CM2

The AGP Taper Milling Drill Chuck Arbor is a superior quality product, which was made in Italy, entirely of hardened and ground steel.

ARBOR-APL-CM2
$29.95

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Taper Milling Arbor For Drill Chucks, Jacobs Size CM2

The AGP Taper Milling Arbor, made in Italy for Drill Chuck, entirely of hardened and ground steel.

ARBOR-APL-CM2
$19.95

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Taper Milling Arbor Size 33x3 For Jacobs Drill Chuck

The AGP Taper Milling Arbor, made in Italy for Drill Chuck, entirely of hardened and ground steel.

Size 33x3 fits the Jacobs Chuck 33-B16, 5/64-1/2" Made In Sheffield England

ARBOR-MILL-33X3
$19.95

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Jacobs Chuck 33-B16 With Key 32, 5/64-1/2" Made In Sheffield England

New, Unused Vintage Jacobs Chuck with capacity from 5/64" to 1/2" (2 to 13 mm).

JACOBS-CHUCK-33-B16
$52.95



   

TITEX Plus Single End Centering Drill 0.80 MM HSS

TITEX-CENTER-DRILL-080MM
$10.95

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TITEX Plus Single End Centering Drill 0.50 MM HSS

TITEX-CENTER-DRILL-050MM
$10.95

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TITEX Double Ended Centering Drill 0.036"

TITEX-CENTER-DRILL-036
$10.95

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TITEX Double Ended Centering Drill 0.032"

TITEX-CENTER-DRILL-032
$10.95

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TITEX Double Ended Centering Drill 0.025" HSS

TITEX-CENTER-DRILL-025
$10.95

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TITEX Plus Double Ended Centering Drill 0.020"

TITEX-CENTER-DRILL-020
$10.95

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INTAL Double Ended Centering Drill Made in England 1/8"

INTAL-CENTER-DRILL-1-8
$10.95

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www.ofrei.com
Otto Frei, Watch Parts Since 1930
Customers Entrance
126 2nd St. Oakland, California 94607
Mailing Address: PO BOX 796, Oakland Ca. 94604
Freight Shipment Address: 119 3rd St. Oakland Ca. 94607 USA


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