The greatest commercial reamer available! These versatile solid glass reamers are designed to work as a hand reamer for the delicate work or to be chucked up in your drill for jobs requiring a more heavy-duty approach. All Reamers come standard with 50 Grit abrasive. This and a 32 grit abrasive tape are available in 25 foot replacement rolls. Due to excessive heat generated by power reaming do not use the Small size (EXR-S) under power. Small - 0.215" to 0.360" Medium - 0.340" to 0.475" Large - 0.495" to 0.575" X-Large - 0.550" to 0.700"