D10B-20 REVISED MARCH, 2016 © Copyright 2023. All rights reserved. No portion may be copied or reproduced in any manner. TOOLS & SHOP SUPPLIES SOSMETAL PRODUCTS INC. D14 D13 D12 D10 B D10 TITANIUM NITRIDE and DYNALLOY TWIST DRILLS PART ILLUSTRATION NO. OF DIAMETER STEP SHANK POINT APPLICATION NUMBER HOLE DEPTH LENGTH SIZES 814470 13 1/8 thru 1/2 1/8 1/4 Self-starting. All common drilling needs. in 1/32 increments 814471 8 9/16 thru 1 1/8 3/8 For hole enlarging. All common drilling needs. With in 1/16 Requires 1/2” or No. 814470, will drill 99% of increments larger pilot hole. most common diameter holes. 814472 9 1/4 thru 3/4 1/8 3/8 Self-starting. Ideal for cutting medium in 1/16 size holes. increments 814473 1 7/8 3/8 Self-starting. Perfect size for 1/2” conduit. Ideal for draw-bolt hole and pilot light hole. UNIBIT STEP DRILLS Drill perfectly round holes of varying diameters in metal & plastics. TITANIUM NITRIDE COATING Extends drill life by 500%, and increases cutting rates by 50%. Titanium provides a superhead surface with high lubricity. – Two Styles Available – Multi-Hole Style: Incorporates specially designed cutting steps, of progressively larger diameters, making it possible to drill up to as many as thirteen different hole sizes with a single bit. Single Hole Style: Allows you to drill 7/8” diameter holes in tight confined areas, with little effort. Works in spots regular length drill bits won’t fit. • Multiple hole sizes saves money, one bit can replace up to 13 different twist drills. • Self starting tip means no skidding of the bit, no need for center punching. Greatly simplifies auto accessory installations. Cuts quickly through dense metal. Ideal for rust proofing applications. Sure starts even on curved surfaces. Part No. 813010 13 piece set Sizes: 1/16” to 1/4” by 64ths Packed in 12095 index Part No. 813011 15 piece set Sizes: 1/16” to 1/2” by 32nds Packed in 12096 index Part No. 813012 29 piece set Sizes: 1/16” to 1/2” by 64ths Packed in 12097 index DYNALLOY GOLD TWIST DRILLS • 135° self-centering split point. • No center punching required. • Provides faster starts. • Eliminates work hardening. • Eliminates wandering when cutting rounded material. STRAIGHT SHANK FRACTIONAL SIZES • 135° self-centering split point. • High speed steel drills. Part No. 813024 50 pieces • 16 sizes (see chart) • 12050 steel tray *These numbers are contained in assortment 813024. • Heavy duty construction. • Prevents excessive breakage. • Provides longer life. • Heavy duty web for precision drilling of thick material. • Surface treatment. • Adds anti-friction and anti-weld properties to Dynalloy steel. • Precision flutes. • Permits rapid chip removal. • Reduces chip build-up and chip welding. • Provides cooler operation. DRILL DECIMAL OVERALL PART DIAMETER EQUIVALENT LENGTH NUMBER INCHES INCHES INCHES QTY 813501* 1/16 .0625 1-7/8 3 813502 5/64 .0781 2 3 813503* 3/32 .0937 2-1/4 3 813504* 7/64 .1094 2-5/8 3 813505* 1/8 .1250 2-3/4 3 813506* 9/64 .1406 2-7/8 3 813507* 5/32 .1562 3-1/8 3 813508 11/64 .1719 3-1/4 3 813509* 3/16 .1875 3-1/2 3 813510* 13/64 .2031 3-5/8 3 813511* 7/32 .2187 3-3/4 3 813512* 15/64 .2344 3-7/8 3 813513* 1/4 .2500 4 3 813514* 17/64 .2656 4-1/8 3 813515* 9/32 .2812 4-1/4 3 813516* 19/64 .2969 4-3/8 3 813517* 5/16 .3125 4-1/2 3 813518 21/64 .3281 4-5/8 3 813519 11/32 .3437 4-3/4 3 813520 23/64 .3594 4-7/8 3 813521* 3/8 .3750 5 3 813522 25/64 .3906 5-1/8 3 813523 13/32 .4062 5-1/4 3 813524 27/64 .4219 5-3/8 3 813525 7/16 .4375 5-1/2 3 813526 29/64 .4531 5-5/8 3 813527 15/32 .4687 5-3/4 3 813528 31/64 .4844 5-7/8 3 813529 1/2 .5000 6 3 • Enlarges holes quickly, saving time needed to change twist drill bits. • Automatic deburring action means smooth, round holes and perfect hole sizing, time after time. • Easy to sharpen, using ordinary grinding stone.
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