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Step Drills (Hole Enlarging) - Inch and Metric Sizes

* Easy-to-Sharpen, Non Skid Tip - Eliminates skidding and the need for center punching; the tip gives sure starts even on curves surfaces.
* Single-Fluted Cutting Edge - Helps assure true round holes and allows greater control.
* Multiple Steps - As many as 13 different hole sizes in a single bit eliminates the need to maintain a toolbox full of specific size drill bits.
* Hardened Steel for Longer Life - Constructed of industrial grade high speed molybdenum steel and heat treated to assure maximum durability.
* 3 Flatted Shank - Prevents slipping in drill chuck.
Order # Manufacturer Description Price  
6210220 UNIBIT USA Model 20 / 9/16-1" / 1/16" Steps / 1/2" Shank / 1/8" Max. Mat. Thick. / 8 Holes $45.30
6210221 UNIBIT USA Model 21/ 13/16-1-3/8" / 1/16" Steps / 1/2" Shank / 1/8" Max. Mat. Thick. / 10 Holes $92.00
6211580 UNIBIT USA Model 20mm / 14mm-24mm / 2mm Steps / 13mm Shank / 5mm Max. Mat. Thick. / 6 Holes $45.30
6211581 UNIBIT USA Model 21mm / 20mm-34mm / 2mm Steps / 13mm Shank / 5mm Max. Mat. Thick. / 8 Holes $92.00
 
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