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Blue Ribbon™ High Speed Twist Drills

Original price was: $25.05.Current price is: $10.02.

SKU: US-9737691922734 Categories: , Tag:

Description

Blue Ribbon™ High Speed Twist Drills

Jobbers length twist drills made of the finest high-speed steel. Heat treated to a hardness of 63–65 HRC and precision-ground to a tolerance of +0.0000 to –0.0003″. Can be used on all metals.

Additional information

Drill Bit Diameter

#50 – 0.070" (2.05mm), #51 – 0.067" (2mm), #52 – 0.063" (1.95mm), #53 – 0.059" (1.85mm), #54 – 0.055" (1.8mm), #55 – 0.052" (1.75mm), #56 – 0.046" (1.65mm), #57 – 0.043" (1.6mm), #58 – 0.042" (1.55mm), #59 – 0.041" (1.5mm), #60 – 0.040" (1.45mm), #61 – 0.039" (1.4mm), #62 – 0.038" (1.35mm), #63 – 0.037" (1.3mm), #64 – 0.036" (1.25mm), #65 – 0.035" (1.2mm), #66 – 0.033" (1.15mm), #67 – 0.032" (1.1mm), #68 – 0.031" (1mm), #69 – 0.029" (0.95mm, #70 – 0.028" (0.9mm), #71 – 0.026" (0.85mm), #72 – 0.025" (0.8mm), #73 – 0.024" (0.75mm), #74 – 0.022" (0.7mm), #75 – 0.021" (0.65mm), #76 – 0.020" (0.6mm), #77 – 0.018" (0.55mm), #78 – 0.016" (0.5mm), #79 – 0.014" (0.4mm), #80 – 0.013" (0.35mm

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